105 Pieces Cobalt Drill Bits Set for Stainless Steel Metal HSS-Co Titanium Gold
✿Made of HSS steel with 5% Cobalt. Type: Hss Steel Drill Bit. 1 105pcs Drill Bits. ✿Suitable for most materials including Copper, brass, wood, plastic, aluminum alloy, etc. Sub-Type: Drill Set. Material: High Speed Steel.