Diamond Drill Bits Set Size:5pcs: 3/16" (5mm)-3/8" (10mm) which is with good stretch

which is with good stretch and breathability

For Use On - Perfect for Stainless Steel/Metal Sheet/Wood/Plastic/Aluminum Sheet/Copper and other metal sheets

reducing the risk of allergic reactions and contamination

The fixed offset head providess stronger support to tighten the last screw or loosen the first screw easily

Diamond Drill Bits Set Size:5pcs: 3/16" (5mm)-3/8" (10mm) which is with good stretchComplete Set of Diamond Core Drill Bits: 5 pack includes sizes 3 16" (5mm), 1 4" x 2 (6mm), 5 16" (8mm), 3 8" (10mm). 10 pack includes sizes 3 16" (5mm), 1 4" (6mm), 5 16" (8mm), 3 8" (10mm),drill bit*4,ph2 bits*2. Long Lasting: We have enhanced the durability of these drill bits by thickening the diamond cutting coating, ensuring prolonged usability and reducing the chances of them becoming unusable after a few grinding sessions. The solid hexagonal