Wera kraftform plus lasertip 1000v vde electricians stainless steel screwdriver set for use with stainless steel screws the use of stainless tools with stainless steel fasteners prevents the cross contamination of metal preventing rust from a galvanic process anti slip lasertips significantly reduce the required screwdriving effort and prevent slip from the screw head vacuum ice hardened for industrial strength correctly designed multi component handles provide comfort during intensive use