Gutter End Cap Crimper (Adjustable Snap Lock Punch)

The Malco model SL2R Adjustable Snap Lock Punch can be used as a gutter end cap crimper or for use in creating locking tabs in light sheet metals. A slide adjustment for throat depth allows settings from 1/4 to 5/8 inch (6 to 16 mm) depth. The formed metal cutting jaws and handles are made of hardened stampings. Rust resistant nickel plate and black oxide finishes ensure long service life. Easy one-hand operation make this a versatile tool for the job at hand.

The SL2R Snap Lock Punch also features ergonomic RedLine Handle technology. An Engineered handle opening compliments the natural power stroke of any user’s hand and maximizes the powerful 7:1 mechanical advantage of compound-leverage head to handle linkage. Comfortable handle grip contours, a non-slip grip insert, spring handle actuation and a thumb-operated handle latch ensure a natural fit and feel for comfortable one hand operation.


  • Ideal for crimping gutter end caps in place or creating your locking tabs for sheet metal duct corners.
  • Compound leverage produces 7 to 1 mechanical advantage.
  • Ergonomic Redline Handles won’t wear you down.




My Review for Gutter End Cap Crimper (Adjustable Snap Lock Punch)

  • This field is for validation purposes and should be left unchanged.


Michael S Garvis

Five Stars

Worked well for the gutter project.

Otrevor Alavaz

Great Sheet Metal Punch

I had to borrow a punch from one of my coworkers every time I had to snap lock register frames & elbows together. It has an adj depth lever & screw. Dhen one has lots of boots to put together & gets in fast production mode, the lever moves uneven. That's due to this model only has one adj screw & slot on one side of the punch. Need 1 on each side.

Wm. Clay Const. "Union Carpenter"

Great for Gutters

I don't do a lot of gutter work so wasn't sure how pros crimped end caps.I had the cheaper, fixed model but when I was in the tool store, this model had a picture of a pr crimping the end cap of a gutter so I bought them. They work great,are well made in the USA, I plan to have these for many yrs. I liked them so much,I bought this pr for a friend.



Top quality tool. This tool locks the end caps in place on aluminum gutters and heating duct work. I am sure that there are additional uses that I am not aware of.


Good for steel and aluminum gutters

Works great and seems well built. Crimps with ease, just make sure you have it all slid together tight. Works well with steel gutter end caps.