14Pc Self-Centering Hinge Tapper Core Drill Bit Set Center Drill 1/4" Hex Shank

Feature1. Suitable for most general purpose drills2. Efficient and accurate positioning3 Double face with exhaust sawdust design4. There are 7 high-quality replacement drill bits: when the drill bit is damaged, only need to replace the drill bit that can continue to be used. Package Included7x Center Drill (5/64", 7/64", 9/64",11/64'', 13/64'', 5mm and 1/4") (with shell)7x Replace the drill bit1x hex wrench