3in1 Countersink Drill Bit Set ? Enable you to Drill, Countersink and Counterbore in one step, ideal woodworking tools for setting screws flush with or below the surface of a material.
Meet All Your Needs?3 packs of Countersink drill bits assortment in size#10 (1/8"), #12 (9/64"), and #16 (3/16") for perfect centered Screws Holes in both Soft and Hard Wood.
Easy To Use?3 sharp edged 82-degree chamfer design Counter sink bits built with 1/4" Hex Shanks with groove for quick size changes without bit slipping, compatible with most electric drills and tools.
Drilling Depth Adjustable? Working length of the pilot drill bit is adjustable for precise depth control; hex wrenches included for changing or tightening the pilot drill bits.
Compatible with More Materials ? Pilot bits are made of high quality M2 steel, countersink bits make of high carbon steel, able to drill in hard wood, soft wood, plywood, plastic; Please use a drill bit one size smaller in soft wood.
