Irwin (928) 3016021 3016021 - DRL BIT 21/64 X 4-5/8 COBALT

Irwin 3016021 21/64 Inch Cobalt High Speed Steel Drill Bit. Engineered with cobalt for high heat and abrasion resistance. 135 deg split point ensures a true start and eliminates bit walking. Twist drill bits hss-135 degree point jobber length straight shank 21/64-inch x 3-5/16 High speed steel with M-35, five percent cobalt, for higher heat and abrasion resistance; heavy duty web construction for strength and durability. Split point begins drilling immediately, minimizing bit walk when used in applications such as metal drilling, including heavy duty abrasive alloy metal drilling on hardened steel (heat-treated). High-speed steel with M-35, 5% cobalt, for higher heat and abrasion resistance; heavy-duty web construction for strength and durability. Split point begins drilling immediately, minimizing bit walk when used in applications such as metal drilling, including heavy-duty abrasive alloy metal drilling on hardened steel (heat-treated). High speed steel with M-35, five percent cobalt, for higher heat and abrasion resistance; heavy-duty web construction for strength and durability. Split point begins drilling immediately, minimizing bit walk when used in applications such as metal drilling, including heavy-duty abrasive alloy metal drilling on hardened steel (heat-treated).