For medium or heavy-duty portable, bench or floor-mounted power tools
Exceptionally high accuracy, gripping power and durability
Wide range of capacities for use on threaded and taper-mounted spindles
Jaws treated to ensure thread life and high gripping surface hardness
1-piece sleeve
Fluted sleeve standard except model TB844, which is smooth and ground
Models TB839 and TB846 are equipped with a positive drive slot
Models TB840 and TB847 are equipped with a pin-type positive drive
Model TB844 is equipped with locking collar - 1 1/16-20 thread