Review on Enhance Precision with Dremel 631 Brad Point Drill Bits by Nick Beck

These are very accurate and well made Brad Point drills, they work perfectly and the guide is perfectly centred. If you're going to use them with a rotary tool, you'll need a "drill stand". A rotary tool is not suitable for drilling objects larger than 1/4" and even a 1/4" tool weighs it down a bit (you have to feed very slowly and use a high speed, which is not for durability is ideal). a little). For non-production, occasional use, with stand; These bits cut very clean and precise holes (even on the exit side of the hole).