These bits are made from virgin hi-grade Cobalt M42 steel. Cobalt has a melting point of 2,723 degrees Fahrenheit! These bits will drill through the...
QUAD EDGE Tip delivers precision and stays sharper longer. Thicker tapered web design increases bit strength. VARIABLE HELIX flute on driver bit allows for rapid...
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...