Kit includes heavy-duty pneumatic punch tool (2-1/2" dia, 10-3/4"L, 7.80 lbs), flanging head, four hole punch heads, 1 air swivel, and handy case.
Interchangeable heads screw on and off in seconds. Use the flanging head to produce a 1/16" offset in sheet metal so patch panel fits flush with original metal surface -- great when replacing sheet metal panels. The hole punch heads (4.0mm, 5.5mm, 6.5mm, 8.0mm) are used for punching holes when spot or tack welding, or riveting.