![]() ![]() ![]() Irwin is one of the most reputable manufacturers of cutting tools, and their solid steel bit gauge is built to last forever. Includes practically every conversion you’ll ever need.There’s also recommended tap sizes for unified and metric threads, recommended diameters for pipe taps, and a handy list of formulas for doing your own conversions. This chart provides conversions for standard bits to their decimal conversions, numbered bits to their decimal conversions, and metric bits to their decimal conversions. This chart is a must for any shop, as it has literally everything you could ever need to know, in one convenient place. Each of these gauges will provide you everything you need to do conversions on the spot. Rather than send you to the store armed with nothing but the cash in your pocket, we’ve taken a look at tons of different size charts and bit gauges for you to choose from. These handy gauges are worth their weight in gold, and most of them will fit in your pocket or wallet.īit gauges are made from either plastic or metal and feature a series of holes that correspond to different bit sizes, along with their standard size, and metric conversions. Or, you could save yourself time by referring to a bit gauge when it’s time to convert. Sure, you could sit there doing the math anytime you need to make a conversion. For conversions from inches to millimeters: multiply the number by 25.4.For conversions from millimeters to inches: multiply the number by.If you’re interested in doing bit conversions yourself, all you’ll need is a calculator and these formulas: Or, if you prefer to avoid doing math altogether, a pocket bit gauge is worth its weight in gold. If you’re a regular Einstein, you can do the math yourself. So, what do you do when you need to make conversions from standard to metric? There are two different ways to tackle this issue. You’re regularly going to encounter fasteners or hole sizes that are sized metrically, usually in millimeters. Just because your drill bits are sized in fractions doesn’t mean the rest of the world is. So far, everything has been relatively straightforward and easy to understand. Most standard screws are sized by number, from 1-12, and each of those numbers corresponds to a different drill bit size. Matching Bits to Screwsįor new construction, it’s essential to know which drill bit corresponds to which screw size. However, if you have bits in these sizes, you’re well on your way to having every drill bit you’ll ever need. Keep in mind that there are hundreds of more bits beyond the ones that we’ve covered here. Here are the most common sizes for a standard (fractional) bit set: 1/16 As a rule of thumb, any set that contains 20 or more bits should be more than enough for most craftsmen. Of course, some bits have specialized applications and aren’t relevant for most basic work around the house.Ī typical set of drill bits includes somewhere between 12 and 30 bits. Maybe a better question would be how much time you have!Īll kidding aside, when it comes to drill bits, there’s a seemingly endless array of different sizes. Today, we’ll cover a drill bit size chart, so you can ensure you always have the right tool for the job. Considering the sheer volume of different bits on the market, this is easier said than done, and it gets even more complicated once you realize that not all measurements correspond to standard bit sizes. Having the right drill bits on hand is critical, whether you’re a weekend warrior, or a professional carpenter or contractor. ![]() You can measure 1/16″ to 1/2″ range of drill bits using that gauge.Share on X (Twitter) Share on Facebook Share on Pinterest As for me I use this gauge to identify the drill bit size in inches and millimeters quickly. The table below will introduce you to the fractions and decimals of inches in mm. So we have to interchange the metric units and imperial units. ![]() Inches are really popular in the USA but, beyond that, mostly used SI units. You can multiply by 25.4 of inches value when you convert that to mm.Įx – 0.5 inches = 1/2″ = 0.5 inches × 25.4 = 12.7mm When you measure drill bit size in inches, you can convert it into mm using this method. When the drill bit diameter is available in mm, it can be converted into inches easily. Fractionĭrill Bit Sizes in inches and mm table Drill Bit Size Conversion Methods 1. You can see fractions, inches, and mm values for each drill bit size here. How to Convert Drill Bit Inches to mm?īy following the above method, this table has been prepared with available drill bit sizes. ![]()
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