1/26/2024 0 Comments Cnc drill bits sizes chart![]() ![]() Well, if you base your answer on how many size holes there are in the world, then there would be infinite amount of bits! If you were to look at the most all encompassing collection of multi-purpose, twist-type bits, how many drill bit sizes would there be? How Many Drill Bit Sizes Are There?įirst things first. Scroll down if you just need a quick reference using our drill chart. ![]() We’ll discuss these in detail in this article. Many times, we’re just trying to find out the alternative sizes available if you’re working with metric sizes (measured in millimeters) versus standard or empirical values (our familiar fractional inch variety).Ĭheck out our full drill charts below for a quick reference to find all drill size equivalents.įinally, getting the right size drill bit set in your greater tool “chest” will arm you for the various types of projects you’re doing. It may not be totally evident at first glance. Knowing just what size you need to use for the hole you’re making is also important. 8mm Router Bits (5/16” Shank Approx.)Ĩmm shank router bits are one of the most popular European sizes however, they’ve recently been introduced in the UK for use in smaller medium-duty routers.Having the right drill bit sizes on hand for your particular repair or building task is essential for any seasoned carpenter or weekend-DIY’er. Most 6mm shank router cutters will not fit in a ¼” collet on handheld routers. 6mm Router Bits (1/4” Shank Approx.)Ħmm bits are approximately a quarter of an inch however, they are measured under European sizes, meaning the metric system is used. Unlike ¼” and ½” bits, 3/8” router bits have recently been deemed as historical sizes, meaning they’re being used much less frequently. ![]() In fact, heavy-duty routers are predominantly supplied with ½” collets. ![]() Much like ¼” bits, router bits of ½” are some of the most common solutions on the British market. This is because the majority of light-duty routers are supplied with ¼” collets. ¼” V-Groove Router BitsĪs previously mentioned, ¼” router bits are one of the most common shank diameters in Britain. We show the full dimensions and shank size in the description of every product. For instance, a 2mm cutting diameter two-flute up cut router would be on a 1/8” shank. For sizes 1/8” (3.175mm) and under, most cutting diameters would be on a 1/8” (3.175mm) shank. For example, a 4mm cutter would be on a 4mm shank. For CNC router cutters, most sizes above 1/8” (3.175mm) cutting diameter will be on the same size shank as the cutting diameter. If using a CNC router, then you will be able to get collets for any shank size. Detailed below are some of the other common shank diameters available in the UK. This is one of the most important aspects to consider when selecting your chosen router bit, and two of the most common sizes you’ll encounter on handheld routers are ½-inch and ¼-inch spiral up-cut router bits. Shank Diameterįirst up is the shank diameter, which is measured across the centre of the bit’s shank from any point on the circumference. It’s for this reason that we’ve put together this handy blog to help you sift through the almost unending selection of router bits to find the best one for your project. Even as a tradesperson, navigating the world of router cutters in the UK is by no means straightforward. It’s not just the endless names (engraving router bits, straight flute router bits, router milling bits, spiral router bits, etc.), but it’s also the seemingly never-ending measurements. When it comes to finding router bits in the UK, you’re often presented with a lot of jargon and measurements that may not make immediate sense. Ground Flat Stock (O1 Gauge Plate) Imperial Sizesįolding / Scoring Router Bits For ACM Dibond Aluminium Etc Ground Flat Stock (O1 Gauge Plate) Metric Sizes PH3 Impact Screwdriver Driver Bits Phillips No.3 PH2 Impact Screwdriver Driver Bits Phillips No.2 PH1 Impact Screwdriver Driver Bits Phillips No.1 IK90 Internal Keyway HSS Butt Welded Tools HSS M42 (8% Coablt) Toolbits (Round, Rectangular & Square)Ĭopper Commutator Carbide Tipped Turning Tools HSS M2 Toolbits (Round, Rectangular & Square) Solid Carbide Endmills & Slot Drills For Aluminium Solid Carbide Endmills & Slot Drills For Steel ![]()
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