The Tamco/Toku THR-4 is the screw-on retainer version of the THA gooseneck chipping hammer line – the threaded retainer holds the chisel captive for overhead and production chipping where a lost oval retainer means downtime. Four-inch stroke class delivering 1,600-1,800 blows per minute at 90 PSI from a 22 lb, 18-1/2 in. tool drawing 33.25 CFM. Saw-tooth handle joint, heat-treated alloy cylinder, and your choice of .580 hex or .680 round shank. Made by TOKU Pneumatic Tool Mfg. (Japan, since 1937), distributed by TAMCO Tools.
- Screw-on chisel retainer – no lost retainers overhead
- 1,600-1,800 BPM at 90 PSI
- 22 lb, 18-1/2 in. long, 33.25 CFM
- .580 hex or .680 round shank
- Gooseneck saw-tooth handle
- Heat-treated alloy cylinder













