The Gold Standard for Independent Chucks
BISON, has been producing manual chucks for over sixty years and is the largest manual chuck manufacturer in the world.
They offer a comprehensive selection of the manual 4-jaw independent chucks. There are 4-jaw chucks with forged steel, steel && semi steel bodies that are provided with A, D, L, & Plain Back Mounts. Chucks are also available with 2-Piece hard reversible jaws and with two sets of hard solid reversible jaws.
Outstanding accuracy, a forged steel body with heat treated jaw guideways, durability, precise finishing and large variety of back plates as well as direct mounts make these chucks useable in any machining applications including rough, medium and finishing cuts.
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