Sets with even more varying drill bit sizes would include diameters smaller than 1/16″ or larger than 1-1/2″. Specialty fasteners sometimes call for a size that would be considered uncommon. This would generally apply to many drill bit types, such as black oxide, titanium, carbide, high-speed steel and masonry (concrete), to name a few.īasic, twist-type drill bit sizes (fractional): In the following drill bit chart are the typical fractional sizes this kind of set would include. Say, for example, a typical 29-piece set. One that could serve any of the above mentioned disciplines well. Various bit types exist for a wide variety of applications, and in particular what material you’re drilling into.įor the sake of simplicity, let’s look at a basic multi-purpose set. Using our drill chart that follows below, you’ll get an idea of just how many sizes there are! (And much more when you factor in different types of bits). In fact, most nice sets include anywhere from 12-30 pieces of standard drill bit sizes. Thankfully, we can narrow it down a bit to some standard sized holes and bits.įor example, let’s look at the most common applications:Įveryday home repair and construction projects, hobby, marine, farming, woodworking, metal working, aircraft, arts and crafts, commercial building projects, machinery and more.įor each particular application area, you’re going to just see a few dozen or so relevant drill bit sizes. 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 chart 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. We recommend the chart for all industries looking for the right kind of information about tap drills.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. Get details about the tap drill metric and measurement from the chart. Evaluate our metric tap drill chart to know more details about the right fit hardener for the job. For hard or tough materials, a lower percentage can really help tap life and those materials have lots of strength even at the lower percentages. For most applications, you can get longer tap tool life and a lower likelihood of breaking a tap off in the hole by using a lower percentage of thread. The performance of the bit is analyzed with the geometry and sharpening of the cutting edges. The threaded percentage needs to be considered you want when you’re done tapping to know about the right drill bit size for your particular tapping application. When it comes to tapping drills, one size doesn’t fit all. The size recommended in most drill bit size charts is very often not the best size to use. Get the best hardware fasteners from Newport Fasteners store at a great price! Having a good metric tap drill chart is a very handy thing while buying or deciding on the right kind of fasteners for the work.
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