Drill America A60S CO SET Machine Degrees. Cobalt steel tools are similar to high-speed steel, but with more cobalt for improved performance when cutting harder...
Drill America D/A29S-CO-SET 29 Piece Cobalt Steel Screw Machine Length Drill Bit Set in Metal Case, Gold Oxide Finish, Round Shank, Spiral Flute, 135 Degrees...
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...