The Greenlee Slug-Buster® Manual Knockout Set delivers clean, precise conduit knockouts in mild steel, aluminium, brass, copper, fiberglass, and plastics — making it the go-to choice for electricians working on panel builds, enclosures, and junction boxes. Slug-Buster® punches split slugs for effortless removal, while laser markings and alignment indicators keep installations accurate and fast. Draw studs with "dog point" tips eliminate cross-threading on the job site, and all punches, dies, and the carrying case are made in the USA.

Specifications

Type Manual Knockout Set
Application Mild steel, aluminium, brass, copper, fiberglass, and plastics
Conduit Size Range ½" – 1¼"
Hole Size Range 0.89" – 1.70" (22.5 mm – 43.2 mm)
Maximum Material Gauge 10 ga mild steel
Compatible Wrench Greenlee KRW-1 High-Leverage Ratchet Wrench
Kit Contents ½" – 1¼" Slug-Buster® punches and dies, 7/16" ball-bearing draw stud, ¾" ball-bearing draw stud, KCC-BB1-1/4 carrying case
Origin Punches, dies, and case made in the USA