We have Chicago Pneumatic RP9311K 9pc Rnd Shnk W/Chisels Hammer Kit with Product Detail Package Quantity: (1) 9 Piece Kit Type: Air Hammer Kit Stroke Length (Inch): 2-5/8 Blows Per Minute: 3000 Shank Size: 0.401 . The "Chicago Pneumatic RP9311K 9pc Rnd Shnk W/Chisels Hammer Kit" is best product for you. We recommended Chicago Pneumatic RP9311K 9pc Rnd Shnk W/Chisels Hammer Kit