Review on Ultimate Precision: COMOWARE Titanium Twist Drill Bit for Exceptional Results by Dan Bobbert

received them quickly in a few days and they are GREAT! COMOWARE's customer service is even better. I had a small problem which they solved immediately. The bits are strong and cut through wood, metal and laminate. The liner has a hex end so there is no need to overtighten the drill collar. Overall this is a great set of drills. I highly recommend them.