Serplex® 20PCS Diamond Drill Bit Set Stone Carving Rotary Tool Polishing Bits with 1/8 inch Shank 6 Designs Flat-faced Head Spear Tip Ball Tips Tapered Round Oval Other Computer Accessory Built-in 2000mAh USB rechargeable battery

Built-in 2000mAh USB rechargeable battery supports up to four hours of continuous spraying

The sleek twistlock metal buckles ensure a secure and adjustable fit

the beads resist fading and cracking

4mm in thickness

Serplex® 20PCS Diamond Drill Bit Set Stone Carving Rotary Tool Polishing Bits with 1/8 inch Shank 6 Designs Flat-faced Head Spear Tip Ball Tips Tapered Round Oval Other Computer Accessory Built-in 2000mAh USB rechargeable batteryVERSATILE 20 PIECE SET: This diamond drill bit set includes 20 pieces, allowing you to tackle a wide variety of drilling and carving tasks. Whether youre working with stone, glass, or ceramics, youll have the right polishing bit for every project, ensuring precision in your crafting or repair work. SIX DISTINCT DESIGNS: With six unique bit shapesflat faced head, spear tip, ball tip, tapered, round, and oval tipsthis set offers exceptional versatility