Irwin 7/16″ x 5-1/2″ Cobalt Alloy Steel Drill Bit
This drill bit is constructed of M-35 5 percent Cobalt Alloy Steel high speed steel for super abrasive resistance in tough metals. The heavy duty spiral flute design produces faster chip ejection.
135-degree point begins drilling immediately, minimizing bit walk
Tough metal drilling, including heavy-duty abrasive alloy metal drilling on hardened steel
5-1/2 Cobalt Alloy Steel for higher heat and abrasion resistance
Heavy-duty with construction for strength and durability