The CRL 39001 Rivet Gun Kit includes the heavy-duty HP2 Rivet Gun, complete with its four nosepieces for 3/32", 1/8", 5/32" and 3/16" (2.4, 3, 4 and 4.8 mm), rivets, and elongated, contour-grip handles for positive setting action. The rivet selection includes sizes to complete a diversity of job applications. All are housed in a high impact plastic carrying case with a positive snap lock closure. An excellent all-around rivet kit for every tool chest.