Remember that time you were tackling that ambitious DIY project, the one you’d been dreaming about for months? You had the wood, the plans, the enthusiasm…everything except the right drill bit. You went to drill a pilot hole, and BAM! Snapped bit, splintered wood, and a whole lot of frustration. Sound familiar? That’s when you realize the true value of quality drill bits, and more specifically, the potential of crafting your own with the best jobber drill blanks.
Whether you’re a seasoned machinist, a dedicated hobbyist, or simply someone who demands precision and durability, understanding the world of drill blanks can unlock a whole new level of control over your drilling capabilities. This guide is designed to demystify the process, offering comprehensive reviews, expert advice, and everything you need to know to select the best jobber drill blanks for your specific needs. So, let’s dive in and get you drilling like a pro!
We’ll review the best jobber drill blanks shortly, but first, check out some relevant products on Amazon:
Choosing the Right Drill Bit: Why the Blank Matters
Ever wondered why some drill bits slice through metal like butter while others chatter, wander, and ultimately dull faster than you can say “stripped screw?” It often boils down to the drill bit’s foundation – the blank itself. Think of it like building a house; a shaky foundation means problems down the road. When you are searching for the best jobber drill blanks, understanding their purpose is a great place to start. Drill bit blanks are cylindrical rods of steel that will eventually be shaped into a drill bit and the quality of that blank greatly affects the longevity and performance of the completed drill.
The world of drill bit blanks is surprisingly nuanced. You’ve got different steel types, varying levels of hardness, and precise manufacturing processes all contributing to the final product. Did you know that globally, the drill bit market is projected to reach over $3 billion by 2027? A significant portion of that market consists of high-quality blanks, crucial for industries ranging from aerospace to DIY. Choosing the right blank is essential to achieving the best performance.
So, why focus on the blank? Well, a high-quality blank translates to a drill bit that stays sharper for longer, drills more accurately, and resists breakage. Whether you’re a professional machinist, a dedicated DIY enthusiast, or somewhere in between, knowing what to look for in a blank will save you time, money, and a whole lot of frustration. It’s a simple as understanding the value you are getting, and how to extract the best performance.
Consider this your friendly guide to navigating the sometimes-confusing world of drill bit blanks. We’ll break down the key features, explain the different types of steel used, and offer practical advice on choosing the best jobber drill blanks for your specific needs. Get ready to level up your drilling game!
Top 5 Best Jobber Drill Blanks
Precision Twist Drill Jobber Length Drill Blank
Looking for a reliable drill blank to create custom tools? The Precision Twist Drill Jobber Length Drill Blank is a solid choice. Made from high-speed steel, these blanks are designed to be tough and durable, ready to be ground into the specific shape you need. The consistent diameter and quality material ensure that your final tool will be accurate and long-lasting.
While these blanks are a great foundation, remember that the final performance depends heavily on your grinding skills. Novices might struggle to achieve the desired precision without practice. However, for experienced machinists and toolmakers, these blanks offer excellent value and versatility in creating specialized drilling tools.
Champion Cutting Tool Brute Beaver Drill Blank
The Champion Cutting Tool Brute Beaver Drill Blank lives up to its name, promising robust performance for challenging applications. Crafted from premium high-speed steel, this blank is built to withstand high heat and wear, making it ideal for machining harder materials. The consistent hardness throughout the blank ensures uniform cutting properties when you grind your custom drill bit.
One thing to keep in mind is that this particular blank is a bit pricier than some of the alternatives. However, the superior material and construction justify the cost for those who demand the highest level of performance and durability from their custom-made drill bits. If you need a drill blank that can handle tough jobs, the Brute Beaver is worth considering.
Viking Drill and Tool Ultra Bor Super Premium Drill Blank
The Viking Drill and Tool Ultra Bor Super Premium Drill Blank is for those who demand the best of the best. These blanks are crafted from a special grade of high-speed steel that has been cryogenically treated, resulting in exceptional hardness and wear resistance. This translates to a longer tool life and improved performance, especially when working with difficult-to-machine materials.
The higher price tag reflects the premium materials and advanced manufacturing processes used in these blanks. They are a favorite among professional machinists and toolmakers who appreciate the superior performance and reliability they offer. While perhaps overkill for occasional hobbyists, for those who rely on their tools for demanding tasks, the Ultra Bor drill blanks are an investment in quality.
M.A. Ford Drill Blank
M.A. Ford Drill Blanks offer a good balance of quality and affordability, making them a popular choice for both hobbyists and professionals. Made from high-speed steel, these blanks provide a reliable foundation for creating custom drilling tools. They are known for their consistent diameter and hardness, which ensures predictable grinding and cutting performance.
While not as exotic or high-end as some of the other options, the M.A. Ford blanks get the job done without breaking the bank. They are a solid choice for general-purpose toolmaking and are readily available in a wide range of sizes. If you need a dependable drill blank that won’t empty your wallet, the M.A. Ford is a worthy contender.
Somma Tool Drill Blank
Somma Tool Drill Blanks are designed for those who prioritize precision and consistency. These blanks are manufactured to tight tolerances, ensuring a uniform diameter and smooth surface finish. This makes them a great choice for creating precision drilling tools that require accurate hole sizes and smooth finishes. They are a solid option for use in screw machines and CNC lathes.
While they might not be the cheapest option on the market, the Somma Tool drill blanks offer excellent value for those who need precise and reliable results. They are a popular choice among toolmakers who specialize in creating custom cutting tools for demanding applications. If accuracy is paramount, these blanks are definitely worth considering.
Why Buy Jobber Drill Blanks?
Ever found yourself needing a very specific drill bit size that just doesn’t exist in standard sets? Or perhaps you’re working with a material that’s notorious for dulling regular bits quickly? That’s where jobber drill blanks come to the rescue. Think of them as the raw ingredients for creating the perfect drill bit, tailored precisely to your unique needs. Instead of settling for “close enough,” you can craft a bit that’s optimized for the material you’re working with, ensuring cleaner cuts, faster drilling, and longer tool life.
The beauty of jobber drill blanks lies in their versatility and cost-effectiveness in the long run. Imagine you’re a hobbyist clockmaker needing a non-standard sized bit for delicate brass components. Pre-made options might be scarce and expensive. But with a high-quality jobber drill blank and the right sharpening tools, you can create a custom bit that’s perfectly suited for the task, at a fraction of the cost. Plus, using the “best jobber drill blanks,” crafted from superior materials, ensures durability and precision that off-the-shelf bits often lack.
Beyond crafting custom sizes, jobber drill blanks let you experiment with different flute geometries and point angles. Maybe you’re working with a particularly brittle plastic and need a shallower point angle to prevent cracking. Or perhaps you need a specialized flute design for efficient chip evacuation in a deep hole. With blanks, you’re not limited by what’s commercially available; you have the freedom to fine-tune your tools for optimal performance.
Investing in “best jobber drill blanks” and the necessary sharpening skills unlocks a whole new level of precision and control in your projects. You become the master of your tools, crafting bits that are perfectly matched to the demands of your work. Say goodbye to frustrating “close enough” solutions and hello to the satisfaction of a job done right, with tools that are exactly what you need.
Understanding Different Steel Types for Jobber Drill Blanks
Choosing the right steel for your jobber drill blanks is like picking the right ingredients for a cake – it makes all the difference. High-speed steel (HSS) is a common choice, loved for its ability to withstand high temperatures without losing its hardness. Imagine you’re drilling through some tough stainless steel; HSS will keep its edge, preventing you from constantly needing to resharpen.
Then there’s cobalt steel, a step up in terms of heat resistance. This is your go-to when tackling really abrasive materials like cast iron or hardened steel. Think of it like this: cobalt steel is the professional chef’s knife of the drilling world, built for demanding tasks. It will also last longer than HSS so you won’t have to replace them as often.
Carbon steel is another option, but it’s best suited for softer materials like wood or plastic. It’s more economical, so it’s great for projects where you don’t need extreme durability. Just remember not to overheat it, or you risk losing its hardness.
Finally, there’s carbide. Carbide drill blanks are in a league of their own, known for their exceptional hardness and wear resistance. These are your heavy-duty players, perfect for production environments where you need consistent performance and long life when drilling through very hard materials, such as tool steel.
Choosing the Right Size and Length for Your Project
When it comes to jobber drill blanks, size matters! You need to select the right diameter for the holes you intend to drill. Imagine trying to fit a square peg in a round hole; if the drill is too small, you’ll have to ream it out, and if it’s too large, you’ll end up with a sloppy fit. Careful measurement is key. It is always better to go a little larger than you need.
The length of the drill blank is also important. Jobber drills, by definition, are designed for general-purpose drilling. But if you’re working in a confined space, a shorter stub drill blank might be a better choice. Consider the depth of the hole you need to drill and the clearance you have around the workpiece.
Think about a time you had to drill a hole deep inside a piece of furniture. A standard-length drill would have been too long and unwieldy. In that case, a shorter drill would have been the more sensible option. Just remember not to go too short, or you won’t be able to reach the drilling point!
Beyond jobber length, there are also screw machine length, stub length, and extra-long drill blanks. Screw machine length is even shorter than jobber, which is ideal for tight situations. Stub length offers a good balance between rigidity and reach. Extra-long drills are for those deep, hard-to-reach holes. Matching the length to the task is crucial for efficiency and precision.
Grinding Techniques and Considerations
Sharpening your jobber drill blanks is an art and a science. The point angle, lip relief, and chisel edge all need to be just right to ensure efficient cutting and long tool life. Using a drill sharpening jig can help you achieve consistent results, especially if you’re new to the process. Think of it as training wheels for your drill sharpening skills.
Proper grinding prevents common problems like wandering or excessive wear. If the cutting lips are uneven, the drill will tend to walk off-center, resulting in inaccurate holes. And if the lip relief is too shallow, the drill will rub against the workpiece, generating heat and dulling the edge.
When grinding, use a coolant to prevent overheating the steel. Overheating can change the temper of the steel, making it brittle and prone to chipping. Also, don’t grind too aggressively. Take light passes and frequently check the edge to avoid removing too much material. Patience is key to achieving a sharp, durable cutting edge.
Practicing on scrap blanks before working on your good drills is always a good idea. It allows you to get a feel for the grinding process and make adjustments to your technique without risking damage to your valuable tools. Remember, a well-sharpened drill is a happy drill, and it will make your drilling tasks much easier and more efficient.
Coolant Selection and Usage for Optimal Drilling
Coolant is like the lifeline of the drilling process, keeping your drill bit and workpiece from overheating. When drilling, friction generates heat, which can cause the steel to soften and wear quickly. Coolant acts as a lubricant, reducing friction and carrying away heat. This extends the life of your drill blank and improves the quality of your hole.
There are different types of coolants available, each suited for specific materials and applications. Water-based coolants are a good general-purpose option for softer metals like aluminum and brass. Oil-based coolants are preferred for harder materials like steel and stainless steel, as they provide better lubrication and cooling.
Consider a scenario where you’re drilling through a thick piece of stainless steel without coolant. The drill bit would quickly overheat, losing its edge and potentially work hardening the steel, making it even harder to drill. By using the right coolant, you can prevent these problems and achieve a clean, accurate hole.
The method of coolant application is also important. Flooding the workpiece with coolant is the most effective way to ensure proper cooling, but it can be messy. Misting systems are a cleaner alternative, but they may not provide as much cooling. Experiment with different methods to find what works best for your specific setup and materials. Remember to always follow the manufacturer’s instructions for coolant dilution and disposal to ensure safe and effective use.
Your Friendly Guide to Finding the Best Jobber Drill Blanks
Hey there, fellow maker, DIY enthusiast, or professional metalworker! Ready to dive into the world of jobber drill blanks? If you’re looking to create custom drill bits or simply need replacements for your worn-out drills, you’ve come to the right place. This guide will walk you through everything you need to know to choose the best jobber drill blanks for your specific needs.
Think of this as a friendly chat with someone who’s been there, done that, and learned a few things along the way. We’ll explore the key factors that separate the high-quality blanks from the rest, helping you avoid costly mistakes and ensure you end up with drill bits that perform reliably and last a long time. So, grab a cup of coffee, get comfortable, and let’s get started!
Material Matters: Choosing the Right Steel
Okay, first things first: the material. This is arguably the most crucial factor when it comes to the quality and performance of your drill bit. Different types of steel offer varying levels of hardness, toughness, and heat resistance, all of which directly impact how well your drill bit cuts and how long it lasts. Choosing the wrong material can lead to premature wear, breakage, or even damage to your workpiece.
Think about what you’ll primarily be drilling. Are you working with soft materials like wood and plastic, or harder metals like steel and stainless steel? For softer materials, high-speed steel (HSS) blanks are often a good choice. But for tougher jobs, you might want to consider cobalt steel or even carbide. The grade of steel will drastically impact the finished product’s ability to keep its edge and efficiently remove material, and the best jobber drill blanks start with the right steel.
Size and Dimensions: Getting the Perfect Fit
Next up, let’s talk size. It might seem obvious, but selecting the right diameter and length of your drill blank is essential for achieving the desired hole size and depth. A blank that’s too small won’t create the hole you need, while one that’s too large could damage your workpiece or even break. Similarly, the length of the blank determines the maximum drilling depth you can achieve.
Consider the applications you’ll be using the drill bit for. Are you drilling shallow holes in thin materials, or deep holes in thick blocks of metal? Measure twice, cut once, as they say! It’s always better to err on the side of a slightly longer blank, as you can always shorten it later if needed. Choosing the proper size is key to making the best jobber drill blanks work for your needs.
Hardness and Heat Treatment: Ensuring Durability
Now, let’s delve into the technical stuff: hardness and heat treatment. The hardness of the steel determines its resistance to wear and deformation, while heat treatment is a process that can significantly enhance the steel’s hardness and toughness. A well-hardened and properly heat-treated blank will hold its edge longer and resist breaking or chipping under stress.
Imagine drilling through hardened steel with a poorly hardened drill bit. It’s a recipe for disaster! The drill bit will likely dull quickly, generate excessive heat, and may even snap. Look for blanks that have been hardened to the appropriate Rockwell hardness (HRC) for their intended use. Also, check if the manufacturer specifies the heat treatment process used. This information can give you valuable insights into the blank’s overall quality and durability. Purchasing the best jobber drill blanks means looking for those that have been treated properly.
Surface Finish: Minimizing Friction
The surface finish of a drill blank might seem like a minor detail, but it can actually have a significant impact on drilling performance. A smooth, consistent surface finish reduces friction between the drill bit and the workpiece, leading to smoother cutting, reduced heat generation, and longer tool life.
Think about it: a rough surface will create more friction as the drill bit rotates, generating heat and potentially causing the bit to bind or seize in the hole. A smooth surface, on the other hand, allows the drill bit to glide effortlessly through the material, resulting in a cleaner, more efficient cut. When selecting the best jobber drill blanks, check for blanks that have been ground to a fine surface finish.
Tolerances: Precision is Key
In the world of machining, precision is paramount. That’s why it’s crucial to consider the tolerances of the drill blanks you’re buying. Tolerances refer to the acceptable variations in the blank’s dimensions, such as diameter, length, and straightness. Blanks with tight tolerances ensure greater consistency and accuracy in your drilling operations.
Imagine trying to drill a precise hole with a blank that’s significantly out of round or bent. It would be nearly impossible! The resulting hole would likely be oversized, misaligned, or even oval-shaped. Look for blanks that meet industry standards for dimensional accuracy, such as those specified by ANSI or DIN. The best jobber drill blanks are produced with exacting precision to provide the most accurate drilling.
Manufacturer Reputation: Trustworthy Sources
When it comes to buying any tool, the manufacturer’s reputation matters. Established manufacturers with a proven track record are more likely to produce high-quality drill blanks that meet or exceed industry standards. They typically invest in quality control processes, use better materials, and have more experienced machinists.
Do some research on the manufacturer before making a purchase. Read online reviews, check their website for technical specifications and certifications, and see if they offer a warranty or satisfaction guarantee. Buying from a reputable manufacturer may cost a bit more upfront, but it can save you money and headaches in the long run. The best jobber drill blanks often come from trusted brands.
Price vs. Quality: Finding the Sweet Spot
Finally, let’s talk about price. While it’s tempting to go for the cheapest option, remember that you often get what you pay for. Inexpensive drill blanks may be made from inferior materials, have poor surface finishes, or lack proper heat treatment. This can lead to premature wear, breakage, and ultimately, higher costs in the long run.
However, that doesn’t mean you have to break the bank to get quality drill blanks. Look for a balance between price and quality. Consider your specific needs and budget, and choose blanks that offer the best value for your money. Sometimes, investing a little more upfront can save you money in the long term by ensuring that your drill bits last longer and perform better. Finding the best jobber drill blanks requires considering both price and quality to maximize value.
Frequently Asked Questions
What exactly *are* jobber drill blanks, and how are they different from regular drill bits?
Great question! Jobber drill blanks are essentially uncut, unsharpened drill bits. Think of them as the raw material you’d use to create a custom drill bit. Unlike pre-made drill bits you buy off the shelf, jobber blanks don’t have the point already ground or the flutes precisely shaped.
This means you have complete control over the final drill bit’s geometry. You can customize the point angle, flute length, and even the overall shape to perfectly suit your specific drilling needs. It’s all about creating that perfect bit for that tricky material or unconventional drilling task!
Why would someone even *want* to buy jobber drill blanks instead of just buying regular drill bits?
That’s a perfectly valid point! Most people are perfectly happy with standard drill bits, and that’s totally fine. But jobber drill blanks offer some unique advantages for those who need them. For starters, if you’re working with an unusual material like hardened steel, titanium, or even some plastics, a standard drill bit might not cut it (pun intended!). With blanks, you can tailor the point angle and flute design to optimize cutting performance for that specific material.
Furthermore, if you’re doing a lot of drilling, you’re probably resharpening your bits regularly. Grinding your own from blanks can actually be more cost-effective in the long run, especially for less common sizes. Plus, there’s something incredibly satisfying about crafting your own tools!
What kind of equipment do I need to actually shape and sharpen jobber drill blanks?
Alright, so shaping and sharpening drill bits from blanks does require some specialized equipment. You’ll definitely need a good bench grinder, ideally with a fine-grit wheel. This is your workhorse for removing material and shaping the basic form of the bit.
Beyond that, a drill sharpening fixture is highly recommended. These jigs help you maintain the correct angles and consistency when grinding the cutting edges. Some advanced users might also employ specialized drill grinding machines, but those are generally used in professional settings. Don’t forget safety gear like eye protection!
What materials are jobber drill blanks typically made from? Are some materials better than others?
Good question! Jobber drill blanks are most commonly made from high-speed steel (HSS). HSS offers a good balance of hardness, toughness, and heat resistance, making it suitable for a wide range of materials. However, you might also find blanks made from cobalt steel.
Cobalt steel blanks offer even greater heat resistance, which makes them ideal for drilling harder materials like stainless steel or tool steel. They tend to hold their edge longer at higher temperatures. While generally more expensive, cobalt blanks are a great choice if you frequently work with tough metals.
How do I know what size and length of jobber drill blank to buy?
Choosing the right size and length of blank is crucial. The diameter is straightforward: it needs to match the diameter of the hole you want to drill. As for the length, consider the depth of the hole you’re drilling and add some extra length for the chuck to grip and for safety margin.
Think about accessibility too. A longer blank might be necessary for reaching into tight spaces, even if the hole itself isn’t particularly deep. Ultimately, it’s often better to err on the side of slightly longer than you think you’ll need, as you can always grind it down!
Are there any specific safety precautions I should take when working with jobber drill blanks and grinding equipment?
Absolutely! Safety should always be your top priority when working with any kind of grinding equipment. First and foremost, always wear appropriate eye protection, like safety glasses or a face shield. Grinding throws off sparks and tiny metal particles that can seriously damage your eyes.
Additionally, wear gloves to protect your hands from heat and sharp edges. Make sure your work area is well-ventilated to avoid breathing in any metal dust. And please, take your time and focus on what you’re doing. Rushing the process increases the risk of accidents.
Can I use jobber drill blanks to make left-handed drill bits?
This is a clever thought! And the answer is yes, absolutely, you can use jobber drill blanks to create left-handed drill bits. In fact, this is one of the more common reasons people turn to blanks!
Since you’re grinding the flutes and the point yourself, you have complete control over the direction of rotation. Just keep in mind that grinding a left-handed bit requires a slightly different technique and a good understanding of drill bit geometry. There are plenty of tutorials available online to guide you through the process!
Verdict
So, there you have it! We’ve journeyed through the world of drill blanks, highlighting some of the best jobber drill blanks and giving you the lowdown on what to look for. Armed with this knowledge, you’re now more than ready to select the perfect blanks for your needs, whether you’re a seasoned machinist or just starting your DIY adventure. Remember, choosing the right blank is about finding the perfect fit for your project, ensuring precision and lasting quality in your finished drill.
Now it’s your turn to take the plunge and put this information to good use! Don’t be afraid to experiment, explore different materials, and truly craft something amazing. With the confidence you’ve gained, selecting the best jobber drill blanks will be a breeze. Go ahead, unleash your creativity, and start drilling your way to success!