Metal Drill Bit Kit, 6 Pcs Combination Drill And Tap Bit Set Hss Drill Bit And Taps 1/4" Hex Shank Countersink Bits Multipurpose Drilling Kit Metal Drill Bits For Drilling On Metal And Stainles

General description The Metal Drill Bit Kit includes 6 pieces of combination drill and tap bits designed for multipurpose drilling on metal, wood, plastic, and thin aluminum. The innovative design allows for drilling, tapping, deburring, and countersinking in one step, enhancing work efficiency. Technical specifications Material: High-speed steel with nitrided surface Sizes: 6 different sizes of taps from M3 to M10 Shank: 1/4' hex shank Usage Suitable for drilling and tapping on wood, plastic, thin aluminum, copper, and other soft metals (5-6mm) Not suitable for hard materials For optimal performance, ensure the drill bit is cooled while drilling and avoid high speeds or frequent drilling Water must be injected during drilling to cool the drill bit Other information Spiral groove design for better chip removal Eliminates human error when used in tapping machines Provides a smooth tapping experience with a cutting edge that creates new threads