Engineer's Hammer Item No. Head Weight Pack KGS 968-831 100 Grams 6 1.1 968-832 100 Grams 6 1.5 968-833 100 Grams 6 2.8 968-834 100 Grams 6 2.9 968-835 100 Grams 6 3.2 968-836 100 Grams 6 3.8 968-838 100 Grams 6 5.6