Cobalt Drill Bit Set 115Pcs M35 HSS Durable, Fast Cutting 1/16 to 1/2
Cobalt Drill Bit Set – 115Pcs M35 HSS. Professional & Widely Use: M35 Cobalt HSS is more suitable for hardened material. Made with durable M35 HSS and 5% cobalt, these drill bits are built to last and provide higher heat and abrasion resistance.