5-Piece Set: The counter sink drill bit for wood includes 5 HSS drill bits tapered bits tackles various drilling needs with popular sizes (3/16Inchx1/2Inch, 1/8Inchx3/8Inch, 11/64Inchx1/2Inch, 5/32Inchx3/8Inch, and 9/64Inchx3/8Inch) for both a secure grip and a universal compatibility with most drills;The multiple bits of different sizes w/ drill stop provides project flexibility Fast & Easy Woodworking: The quick-release hex shank design enables effortless bit for drilling and screwdriving, It is very easy to attach and detach so you can countersink and drill quickly , eliminating the need for additional tools and streamlining the process into a single efficient step and saving you valuable time and boosting your efficiency Depth Adjustable: The countersink drill bits depth are easy to adjust with settings for drill depth and countersink depth; The added plastics collar can reduce marring effectively And Sturdy: The M2 HSS pilot drill bits with spiral chip flute, rapid cutting; steel