Milwaukee Tool 49-22-0071 6PC Flat Boring Bit 6" Universal Set

The six-piece Milwaukee 49-22-0071 set is made for boring small holes in wood, plastic, plywood and Formica. The bits are heat-treated carbon steel, so they are wood and soft-material bits, not masonry or metal bits. If you are drilling through studs and plywood for low-voltage or romex runs, that is the work these are built for.

Yes. The 6 inch flat boring bits in the Milwaukee 49-22-0071 set accept a 12 in. extension for deep-hole drilling, which is how you get through a double top plate or a stacked wall assembly. The extension is a separate item and is not part of the six-piece set.

Flat boring (spade) bits like the Milwaukee 49-22-0071 set are for rough through-holes in wood, plastic, plywood and Formica. They are not the right choice for lockset bore prep, where a hole saw and a self-centering jig give you a clean, round, correctly located 2-1/8 inch cross bore. Use these for running cable and pulling wire through framing instead.

They can. The drill points and cutting edges on these bits are resharpenable, so a shop that files its own bits gets more life out of the set rather than replacing it. That matters on a maintenance crew burning through bits in old framing with nails in it.