... 23MM, 25MM, 27MM2) Australian type Stone hammer: 1kg, 1.25kg, 1.5kg, 2kg German type stone hammer: 0.8kg, 1kg ... , 1.25kg, 1.5kg, 2kg Japanese type stone hammer: 1kg ... pieced stone hammer: 1kg, 1.25kg, 1.5kg, 2kg3) German type Machinist hammer: 100g, 200g, 300g, 400g, 500g, 600g ... fiberglass, hard wood, hickory wood, steel tubular German type Machinist hammer