The Tamco/Toku AA-OS is a 8 lb in-line pneumatic chipping hammer with a 1-13/16 in. piston stroke, purpose-built for industrial scaling, chiseling, weld cleanup, and form stripping. Key specs include 3,000-3,200 BPM impact rate, 23 CFM consumption at 90 PSI, .580 in. hex or .680 in. round chuck options. Ironworkers, masons, refractory crews, and demolition contractors run the Tamco/Toku AA-OS for medium-duty chipping where heavier breakers cause operator fatigue.
- Drop-forged back-head construction with case-hardened alloy steel cylinder for sustained industrial chipping and weld-cleanup duty.
- Rated 3,000-3,200 BPM, 1-13/16 in. stroke, 8 lb for balanced impact across scaling, chiseling, and form-stripping work.
- Consumes 23 CFM at 90 PSI, compatible with standard contractor whip hose and inline oilers for shop or field use.
- A 185-CFM compressor supports single-tool continuous use; larger 185-CFM units run multiple operators on the same circuit.
- Available with .580 in. hex or .680 in. round chuck plus ball, oval-collar, or bolt-on retainer styles to match existing steel inventory.
- Built for scaling slag and rust, weld-spatter cleanup, form stripping, refractory-lining repair, mortar removal, and detail chiseling.
- Ironworkers, masons, refractory crews, and demolition contractors specify it for medium-duty chipping where heavier breakers cause operator fatigue.
- Crowder Supply stocks .580 in. hex and .680 in. round chipping steels plus replacement chucks, retainers, springs, and pistons for the Tamco/Toku AA-OS.
- Toku (Tamco/Toku) is a Japanese pneumatic-tool manufacturer with a deep export catalog of industrial chipping, riveting, and demolition tools.
