Klein Tools 31852 7/8'' (22 mm) Carbide Hole Cutter Features:

• Cuts quick, precise holes in stainless steel, mild steel, iron, copper and brass sheet up to 3/16'' (5 mm) thick.
• Split point pilot drill bit prevents bit walking.
• Integrated flange prevents the operator from drilling beyond the sheet metal.
• Conduit and pipe sizes: 1/2'' (13 mm)

• Always ensure that you and persons in the vicinity wear approved eye protection.