Model:BST-ESD-9 Material:302 stainless steel Magnetism:Non Surface treatment:Black anti-static coating treatment Tip strength:HRC40 Length:115mm Weight:25.4g with package Packing:20pc/box Weight/box:597g Size of carton:500*340*430mm(L*W*H) Weight of carton:16.5kg Anti-magnetic,anti-acid,hard,excellent toughness Polished and sandlasted matte treatment Side handle is polished,easy to use Suitable for PCB semiconductor,photovoltaic and other