6-60Mm Stap Boor Pagode Boor Spiraal Multifunctionele Boor Power Tool Voor Professionele Houtbewerking Onderdelen Accessoires

Features: Hard and not easy to break. With a unique stepped structure, a drill bit can be used in various sizes. Easy to install, no need to replace the drill bit while working. You can choose 12 working steps to suit many needs. Note: Tools used: pistol drill, bench drill. Water injection cooling while working can effectively extend the life of the drill bit. The recommended drilling speed is 250-400 rpm. Specification: Material: high speed steel Packing size: 11*5*5cm Drill size: 6, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60 mm Packing list 1* Step drill