1-3/16" X 1" HSS Annular Cutter with Pilot Pin Quantity:1 The strong steel shaft is

The strong steel shaft is made from Ni-Cr-Mo alloy hardened to 50-54

Part Number DMODK

Part Number: BIT-T/A54226

The ends of the extensions have a through hole that requires a retaining pin and ring to securely connect to a socket or another accessory

External Thread: 1"-8

1-3/16" X 1" HSS Annular Cutter with Pilot Pin Quantity:1 The strong steel shaft isProduct Description Drill America High Speed Steel Annular Cutters are designed for fast, efficient hole making and cut only that material necessary to produce a quality hole. High speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance. Sometimes called mag drills or magnetic drill bits, Drill America Annular cutters have a 3 4" Weldon Shank for use with magnetic drill