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Park Tool Shop Hammer


The perfect shop hammer! Designed and built specifically for bicycle work, the HMR-4 has a fiberglass shaft, a soft touch rubber grip, and a two-sided head—steel on one side and a replaceable plastic head (part #293) on the other side.

  1. 13.5″ long (345mm).
  2. Steel striking face: 1-3/8″ (35mm) diameter
  3. Plastic face: 1-11/16″ (43mm) diameter
  4. 24 ounce head (680g)
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