Review on 🔧 DEWALT DW1361 Titanium Pilot 21 Piece Drill Bit Set: Ultimate Precision and Durability for Your DIY Projects by Dan Bobbert

This set also comes without guide tips which is right for you . The pilot point is handy because you don't need to pre-drill. Note, however, that you cannot use these bits to ream existing holes or countersink holes due to the pilot tip. These drill bits are flat faced and will not center in an existing hole. There are better tools out there for both tasks (step drills and countersinks respectively), but in practice it's always handy to be able to enlarge holes, so it's up to you. BTW, only 3/16" and larger have pilot bits. Bits from 1/16" to 11/64" are the same in both sets. A little more about pilot holes and pilot bits if you don't know what I'm talking about A : When drilling a hole in metal with a regular twist drill (which doesn't have a pilot bit), you want to first drill a small hole - a "pilot hole" (usually about 1/8" and then enlarge it with a large bit .For very large bits you can even do 3 steps.The reason for this is that it provides better centering and extends the life of the bit.This will give you better centering as smaller bits tend to "walk away" less from your starting mark. This prolongs their life, as the larger bits have a fairly wide 'chisel' in the middle that doesn't cut the material, just pushes it, and the chisel is the first part to heat up and dull .If you make a pilot hole, the meiss will el has a lot less work and your bits will last longer. It's also a lot easier to drill this way, especially if you're not using a drill press, because it requires a lot less tool pressure. So they make a pilot hole followed by a big hole all in one. This speeds up drilling because you don't have to change bits. However, because of this, you cannot use these bits to widen existing holes. Regular bits are tapered at the front and will center in any smaller hole. They only have a pilot tip that sticks out, but otherwise they're flat. That way they don't center themselves in an existing hole (unless the existing hole is the pilot's exact size), but instead move around and make a mess when you try to make something bigger. sharpen them - the geometry is too complex.