Duratech Drill Bit Sets 1/16"-1/2" Titanium Impact Hss Twist Drill

【21PCS DRILL BIT SET 】16 commonly used sizes, including 2x1/16",2x5/64",2x3/32",2x7/64",2x1/8",9/64",5/32",11/64",3/16",13/64",7/32",15/64",1/4",5/16",3/8",1/2". 【UNIVERSAL COMPATIBLE SYSTEM 】21PCS Titanium impact twist drill bit set is compatible with power drill driver, impact drivers, and other power tools, easily for locking into quick change chuck.