Three Piece Metal Sheet Knockout Box Hole Cutter Conduit Punch Die Set For Clean Precise Holes Heavy Duty Bearing Steel Tool Kit Designed For Electrical HVAC And Metalwork Projects

Three-Piece Sheet Metal Knockout Hole Punch Die Set
✔️ Heavy-duty bearing steel three-piece set with 20, 22, 25 mm dies

This three-piece knockout box tool is built to cut clean, precise holes in sheet metal for electrical, HVAC and general metalworking projects. The robust bearing steel construction ensures long life in tough workshop environments.

✅ Made from bearing steel for durability and longevity
✅ Punches holes cleanly with high precision
✅ Manual knockout drive applies pressure with multiple wrench turns
✅ Wide compatibility with sheet steel, copper, aluminum, brass and more

Hole Size (mm)	Diameter (inches)
20	0.79
22	0.87
25	0.98

💡 What is a sheet metal knockout punch die set used for in electrical and HVAC panel work?

This handy tool is designed to create clean, accurate holes in metal panels for conduits, mounting boxes, and access points, without needing heavy power tools.

• handy for precise holes in electrical enclosures and HVAC ductwork
• durable bearing steel construction for long service life
• easy manual operation with incremental pressure
• works on sheet steel, copper, aluminum, brass and similar metals