PKNVKZIDK 3pc 10mm Quick Change Metal Tools 1/4" Hex Shank Wood HCS Drill Bit Set Round handle PKNVKZIDK. Thank you for purchasing, and I wish you all the best! Self-Centering Design:The self-centering point eliminates the need for additional tools, enhancing efficiency in drilling operations. Versatile Size Range:Available in sizes 4mm to 10mm, this set caters to a variety of drilling needs, from precise to robust. Quick Change 1/4\" Hex Shank:Featuring a 1/4\" Hex Shank, these drill bits are designed for quick and easy changes on cordless screwdrivers. What Type Of Drill Bit For Stainless Steel Drill Bit For 5 16 Bolt High Carbon Steel Material:Crafted from High Carbon Steel, these drill bits offer superior durability and rust resistance for woodworking tasks. All-in-One Drilling & Tapping:These drill bits combine drilling and tapping, streamlining the process and saving time on woodworking projects. Farbe:One Color