IRWIN Split Point Drill Bit Cobalt For Hardened Steel 5/64 Inch 135 Pack of 4

 IRWIN Cobalt 3016005 5/64" 135 Split Point Drill Bit Pack of 4-------------------------------* Twist drill bits hss-135 degree point jobber length straight shank dia.x oa lgth 5/64 inch.* High speed steel with M-35, five percent cobalt, for higher heat and abrasion resistance.* Heavy duty web construction for strength and durability.Features and further details-------------------------------* Split point begins drilling immediately, minimizing bit walk when used in applications such as metal drilli ng, including heavy duty abrasive alloy metal drilling on hardened steel (heat-treated).