New in opened box.

Conduit Hole Size: 2" Conduit Fitting Size: 2" Actual Hole Size: 2.42"

STANDARD THREAD - Fits Draw Stud Size: 3/4"-16UN

Dies have laser engraved alignment marks for easy and precise positioning.

Punching Thickness Capacity: 1/8" (10 ga) Steel, 1/16" Stainless Steel

They are designed to punch holes in various materials, including steel, stainless steel, brass, copper, aluminum (soft alloys only, not for use with 6061, 7075, and other super alloys), fiberglass, plastic, and more.