MR77C Features: -Rivet at any angle with a simple twist of the tool"s head.-Swivel head riveter sets 3/32", 1/8", 5/32" and 3/16" aluminum and steel rivets.-Spring loaded handle ejects rivet stem automatically.-Comfortable rubber grips.-Replacement aluminum rivets 1/8" x 1/8" (1941-4606), 5/32" x 1/2" (1941-4648), and 3/16" x 1/2" (1941-4689), and rivet assortment (1941-9134).-Carded. Construction: -Rugged die cast metal construction for extended life.