The Park Tool HMR-4 is a versatile and durable shop hammer and is a perfectly-balanced striking instrument built for a wide variety of shop uses, from removing press fit bottom bracket cups to installing star-fangled nuts. Featuring a precision-machined forged-steel striking face as well as a non-marring replaceable nylon mallet head. Using a fiberglass shaft for a soft-touch grip handle.
- Weight: 880 g (31 oz.)
- Head weight: 590 g (21 oz.)
- Length: 345 mm (13.5")
- Steel striking face: 35 mm (1.38") diameter
- Nylon face: 43 mm (1.69") diameter
- Replaceable tip — part #293