KIKAIYA Square Punch Head 3.0 x 3.0 inches (76.5 x 76.5 mm)
Weight: 8.8 lbs (4.0 kg).
Screw Size: 3/4, 16 thread
Rod Diameter: 0.7 inches (19 mm) / 0.4 inches (11.8 mm).
■ Allows you to open square holes neatly and quickly.
■ Can be used in combination with hydraulic puncher (sold separately) (ASIN: B07MNQFVRH)
■ Mild steel can be opened up to 0.08 inch (2 mm) thick.
There may be burrs or distortions near the hole after punching.
Thank you for your understanding.
Image is for illustration purposes only, size may vary