1. The sheet metal hole punch is made of bearing steel, which is strong, durable, and wear-resistant. The black surface treatment makes it corrosion-resistant, ensuring its long service life.2. The spiral interface of the manual knockout punch makes it firmer, which helps create precise and clear holes.3. You can use a wrench to turn the screw. The screw will pull the punch through the metal and a hole will result.4. The flare tool plate dies are suitable for cutting sinks, stainless steel, and steel plates, and can be used in tight areas.5. When operating the sheet metal hole punch, ensure that fingers and hands are kept clear of the punch area to avoid getting hurt.
