Greenlee 730BB-3/4 chassis hole punch is a complete unit consisting of a punch, die & draw stud. It comes properly assembled through pilot holes and is used to make clean and accurate holes.
Working Mechanism:
- Place the apparatus against the sheet metal and apply pressure on the sheet.
- As the pressure increases, the sheet deforms until the punch removes the metal.
Features:
- Designed for manual, hydraulic and battery-powered knockout drivers.
- Used for punching holes in mild steel, aluminium, fibreglass or plastic.
- Speed punch knockout draw stud having carbon steel construction with black oxide finish.
- Features centre alignment markings that improve punching accuracy and productivity when making holes.
- Unique slug-buster punch design for creasing the slug as the punch is drawn into the die.
Standards and Approvals:
Frequently Asked Questions:
Q. Why is it important to use apply a chassis hole punch before boring holes in a piece of metal?
A. It is critical to mark the location of the drill bit on the workpiece. The punch tool cuts a recess in the workpiece to guide the drill bit into the desired area.
Q. How can you sharpen a punch?
A. Take a piece of aluminium foil, fold it over several times and punch multiple holes in it. This can be used to sharpen all kinds of punches.