The Big Daddy is the most versatile and powerful Marson brand hand riveter, taking the hard work out of setting large diameter blind rivets. Its extra-long handles provide excellent leverage and permit working a foot beyond natural reach. Other features include a patented bearing design, self-adjusting two-piece jaws and single-unit body construction with a steel insert toprovide stronger threads for the nosepieces included. In addition, the Big Daddy features a double-gear reduction system which easily sets from 1/8" to 1/4" diameter Klik-Fast rivets in all alloys, including 1/4" Klik-Split® and 3/16" and 1/4" Klik-Lock™* rivets. And a one-piece collet case eliminates the need to adjust the tool when changing rivet diameters. The Big Daddy model # M39031comes with 5/32", 3/16" and 1/4" nosepieces which are stored in the body. Weight: 3.75 lbs.