8PCs Daily Diamond Core Drills Set 20/35/50/68/100mm Drill Bit,Tool Box 50mm Beveling Chamfer Bit & 25mm Drilling Milling Bit & Adapters M14 Thread,Hole Saw Diamond Bits,Drill Bit Set Sharpener

Produktbeschreibung

【Package Content】8pcs/box:5pcs drill bits:Diameter 20/35/50/68/100mm,1pc 25mm Finger Milling Drill Bit,1pc 50mm Beveling Chamfer Bit,1pc HEX Shank Adapter.In a Useful Box to Keep them Together and Easy to Find. 【High Durable & Efficiency】High-quality diamond grains and vacuum brazed technology provides high efficient working performan/Faster Drilling Speed/Longer Servi Life.Treated by special high-temperature resistant proc,can be used directly dry drilling,also with water to extend servi life. 【High Precision & Clean Cuts】U-Grooves design fast p removal,high-temperature resistant proc allowing for greater accuracy in drilling and englarge/beveling/shaping existing holes. 【More Versatility & Convenien】With a diamond drill bit set,you have a Range of sizes and types to tackle different projects and materials,save money. 【Recommended Mane】Recommended Speed 6000RPM;Triangle Adapter for electric drill,recommended speed 2000-5000RPM;Faster the RPM, longer the bit's working life;Hammer drill,you can use SDS Adapter but have to shut down hommer moder when using these bits;