Rokrou Countersink Drill Bit Set Wood Drill Bit M2 HSS Titanium 11PCS Drill Bit Set #4(7/64") #6(9/64") #8(11/64") #10(3/16") #12(7/32") - 1 Hex Wrench …

Only used in pine so far but the 2 bits I used have worked perfectI drilled into an existing screw and the bit still works fine 20+ holes laterThe whole set cost less than I spent on one bit from the local hardware store

I got these for some Melamine cabinets I'm building and so far they have been pretty impressive. Be careful to not over tighten the set screw as I stripped mine fairly easy. Other than that they have been great and a killer tool for the money.

I have used these on a couple of projects so far and they work great.

first thing is 2 of the same size bits and countersink. cant tighten counter sink due to poor allen screws and the one bit i really need spun apart from drill bit to to shank. could not tighten the counter sink on that bit any. ok set need to pay closer attention next time

This thing is awesome. Saves time, easy lock in impact driver, clean pre drill, drive screws flush to work piece. A necessity for me QUICK AND CLEAN. No slowing down, No more splitting wood, no sanding splintered wood.

You will have to find the correct size hex wrench to adjust or replace the bit. Tends to load up on countersink

Thay were sharp and persist in making a clean cut

They work good.