Irwin 324011 2 Cutter Hammer Drill Bit Handlesets The head and handle are

The head and handle are forged in one piece

High Speed Steel

Cable can only be applied straight along the pipe

Fiber trapping rings are designed to prevent mushrooming and dimpling

Thickness: 7/8"

Irwin 324011 2 Cutter Hammer Drill Bit Handlesets The head and handle are"IRWIN INDUSTRIAL" HAMMER DRILL BIT The Irwin Tools 324011 Masonry Drill Bit is a fast and durable bit for the professional user. The bit features a Chrome Vanadium Spring Steel shaft that is through hardened for Superior Durability. The Shot peened, double tempered finish reduces breakage. The Bit also features a tip with a Copper brazed material that gives high heat resistance and reduced tip loss. The Spline shank fits all Spline rotary hammers.