Machinist hammer&sledge hammer (hammer,life hammer,hand tool) Machinist hammer&sledge hammer(hammer,life hammer,hand tool)Machinist hammer's head weights:100g,200g,400g,500g,600g, ... 800g, 1kg,1.5kg,2kg,3kg,4kg,5kg,6kgFrench joiner ... 's hammer's strick side has:18mm.20mm.22mm.25mm.28mm ...