The American Pneumatic Tools APT 654 is a 4-cylinder pneumatic chipping hammer with a 4 in. piston stroke and a 4-bolt back-head, running 1,375 BPM through a .580 in. hex or .680 in. round chuck. The long stroke puts more energy into each blow for form stripping, refractory-lining repair and light concrete demolition, and the 16 lb drop-forged body is built for sustained industrial duty across the APT chipping hammer family.

Like the rest of the line, the 654 pairs APTs flapper-valve design dirt passes through the tool instead of stalling it with a deep case-hardened alloy steel cylinder. It draws 34-36 CFM at 90 PSI through a 7/8-24 female inlet, and because that whip connection lives with constant vibration, clip a whip check across every hose joint. For demolition beyond a chippers reach, rivet busters carry similar handling into heavier breaking; the full spread of pneumatic chipping hammers is stocked in Denver.

• 4 in. stroke and 1-1/8 in. bore deliver 1,375 BPM of deep-hitting impact for harder chipping
• Chuck options: .580 in. hex or .680 in. round with ball, oval-collar or bolt-on retainer styles
• 4-bolt back-head construction stands up to sustained industrial use
• Flapper-valve design lets dirt pass through the tool without stalling it
• Air consumption 34-36 CFM at 90 PSI; 7/8-24 female inlet accepts standard whip hose assemblies
• 16 lb with retainer; 16 in. overall length
• Stocked by Crowder Supply in Denver; free UPS Ground shipping