The Klein Tools 4-Piece Carbide Hole Cutter Set is built for electricians cutting precise conduit and cable knockouts in stainless steel, mild steel, iron, copper, and brass sheet up to 3/16" thick — covering 1/2" to 1" conduit sizes with three carbide-tipped cutters (7/8", 1-1/8", and 1-3/8") that outlast standard bi-metal cutters in abrasive and hard-material applications. The split-point pilot drill bit prevents bit walking on smooth sheet metal surfaces for accurate, clean hole placement, and the integrated flange acts as a depth stop to prevent over-drilling through the sheet. All components store in a rust-proof moulded plastic carrying case, keeping the set organised and protected between jobs.

Specifications

Type Carbide-tipped hole cutter set
Cutter Sizes Included 7/8" (2.2 cm), 1-1/8" (2.9 cm), 1-3/8" (3.5 cm)
Conduit / Pipe Sizes 1/2" (1.3 cm) to 1" (2.5 cm)
Compatible Materials Stainless steel, mild steel, iron, copper, and brass sheet up to 3/16" (0.5 cm) thick
Pilot Bit Split-point (anti-walking); 1 extra pilot bit included
Depth Control Integrated flange prevents over-drilling
Number of Pieces 4 (3 cutters + 1 extra pilot bit)
Storage Rust-proof moulded plastic carrying case included
Weight 1.5 lb (0.7 kg)