... :100, 200,300,400,500,600,800,1000,1500,2000g fiberglass handle german type machinist hammer,hammer,safe machinist hammer,hand ... toolgerman type machinist hammer with fiberglass handle1) ... require4)Specification.(g):100, 200,300,400,500,600,800,1000,1500,2000our hammers have got the German GS certificate ...