Precision die cast aluminum alloy body. Uses 1/8", 3/32", 5/32" & 3/16" diameter Steel & Aluminum Rivets. Uses 1/8" and 5/32" diameter Stainless Rivets Four mounted nosepieces: 3/32", 1/8", 5/32", and 3/16" Drop forged carbon steel upper handle; and thick cushion-molded vinyl grips.