The Park Tool HMR-4 Shop Hammer is 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.
- 13.5" long (345mm).
- 24 ounce head (680g)
- Steel striking face - 1-3/8" (35mm) diameter
- Plastic face - 1-11/16" (43mm) diameter