Chicago Pneumatic CP7111HK - Kit - 0.401 Inch (10.2mm) Air Hammer, Round Shank, Stroke 2.64 in / 67 mm, Bore Diameter 0.75 in / 19 mm - 3000 Blow Per Minute 8941171111Pistol grip hammer For operators working in maintenance applications or body shop applications who look for pisol hammers, CP7111 series provides you the pistol hammer that you need. Take advantage of this pistol hammer, designed for general maintenance and body shop applications. This model belongs to the CP7110 series which is composed of 6 models: 3 pistol hammers (round 0. 401" short hammer, 0. 401" short hexagonal shank and round 0. 401" long