Heavy duty construction made to type J aircraft specifications. High red hardness of cobalt permits speeds 30% greater than high speed steel drills. Used for...
Drillco 1000C Series 32 Piece Cobalt Steel Reduced Shank Drill Bit Set, Black. Cobalt steel tools are similar to high-speed steel, but with more cobalt...
Drillco 500E Series 60 Piece Cobalt Steel Heavy-Duty Jobber Drill Bit Set, Bronz. Drillco 60 piece heavy-duty jobber drill set. Heavy duty construction made to...
EZARC Step Drill Bit for Metal, M35 Cobalt Unibit Step Drill Bit Set 1/8″-7/8″(3pcs) Wear-Resistant AlTiN Coated, 1/4 Hex Shank for Metal, Stainless Steel, Aluminum,...
115 PIECE PREMIUM QUALITY COBALT DRILL BIT SET. THESE ARE NOT COATED DRILL BITS. THE REAL McCOY COBALT DRILL BITS. CUTS CAST IRON-HEAT TREATED STEEL-STAINLESS...
115 PIECE PREMIUM QUALITY COBALT DRILL BIT SET. THESE ARE NOT COATED DRILL BITS. THE REAL McCOY COBALT DRILL BITS. CUTS CAST IRON-HEAT TREATED STEEL-STAINLESS...