If you have coolant thru on your spindle check out Guhring's Firex series...used 'em on H13 tool steel, 1346 3/16" diameter holes thru a 3" thk block....(went from both sides but still...wow)

Offering a slightly larger diameter than the 4mm bit, this 4.5mm jobber drill bit provides more versatility for small-hole drilling projects. It's suitable for a broader range of tasks than its smaller counterpart.

What is ajobberdrill bit used for

we do a job with 4500 1/2 thru hole in the same part, and the OSG is the only one that can survive 1 piece...actually i can make 3 part with 1 drill...

As a beginner in the drilling world, you will encounter many different terms and tools. One of the most confusing yet effective tools you should know is the jobber drill bit.

Jobberdrill vs twist drill

A jobber drill bit is just like a regular drill bit but with a more significant length. These bits have a larger length, but the cutting tip is still the same as most other regular drill bits.

Mechanicslengthdrill bits vsjobber

This unique design allows it to create deep holes in various materials, from wood and plastic to soft metals. The versatility makes it a valuable addition to any drilling toolkit.

Drill bitlengthChart

That’s why we have meticulously crafted this comprehensive jobber drill bit guide for beginners. From definition to the best choices, learn everything about jobber drill bits in one place.

This value pack provides two 3mm jobber drill bits, a convenient solution for those frequently using this common drill bit size. Having spares on hand ensures you're always prepared for small-hole drilling projects.

JobberDrill bit size chart

Whenever you need to work on 5mm holes for dowels, shelf pins, or other applications, look no further than the Alphatools Gold Series 5mm jobber drill bit. This bit delivers clean cuts and reliable performance for a variety of tasks.

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Another member of the Alphatools Gold Series, this 3.5mm drill bit tackles projects requiring slightly larger holes. Its quality construction ensures precise drilling and efficient chip removal for a smooth user experience.

Part of the high-performance Gold Series, this 6mm jobber drill bit boasts superior quality. Expect clean and accurate holes in various materials, making it a versatile choice for professional and DIY applications.

Jobberdrill bitlength

Since jobber drill bits are quite versatile, you can use these drill bits for a variety of purposes. Some of the most common uses of the jobber drill bit include:

JobberDrill Bit Set

Check out this jobber drill bit from Alphatools if you work with imperial measurements. This 11/64-inch jobber drill bit offers a precise solution, equivalent to approximately 4.37mm. It tackles various drilling needs where an exact imperial-size hole is required.

This compact drill bit, measuring 4mm in diameter, is your go-to for delicate projects. It's ideal for creating pilot holes for small screws or nails, ensuring clean penetration without damaging surrounding material.

Drill bit lengths explained

Here, we are making things easy for you with this list of the top 10 jobber drill bits in 2024. Each one delivers in quality but varies in size and features. So, choose the one that best suits your project requirements.

To sum up, choosing the best drill bit is all about what kind of project you are working on. As you can see, all the drill bits here come from the same Alphatools brand; it’s just about the size differences and features.

This larger drill bit, measuring 11mm, is ideal for creating wider holes in wood, plastic, or soft metals. It's perfect for tasks like installing electrical wiring or plumbing fixtures.

As for milling,yes, you want a variable helix cutter, I love the Hanita Varimill for SS, they are very tough and last a long time.

This mid-sized 7.5mm jobber drill bit is your solution for projects requiring medium-sized holes in wood, plastic, or soft metals. Its extended length allows for deep hole creation in a single pass.

This may be your primary choice when you need to create larger holes in fasteners or other applications. This 8mm jobber drill bit from Alphatools is up to the task. Its design facilitates clean drilling and efficient chip removal for various materials.

These drill bits have a specific use case scenario where they shine the brightest. If you are just getting into the drilling world, you should know the purpose of these bits. That way, you can also utilise them in your time of need.

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