South Bend Keyless Integral Chuck R8 1/2"
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These keyless chucks are produced with an integral shank to maximize concentricity between the body, shank and jaws. They start as a one-piece high alloy body which is turned, then finish ground throughout, making them as close to zero TIR (Total Indicated Runout) as can be. A spanner is provided to ease jaw opening.
Animation for SB1382