COMOWARE COBALT DRILL BIT SET. PROFESSIONAL & WIDELY USE: M35 Cobalt HSS is more suitable for hardened material. HSS WITH 5% COBALT: Durable, Higher Heat...
S&D Black Gold cobalt drill bits are designed for extreme durability and long life. A specially designed parabolic flute form clears chips fast, while the...
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...