Bernstein spannfix screw on vices bernstein 9 226 this bernstein 9 226 spannfix maxi vice cab be permanently mounted on worktops benches etc using bolts this vice is suitable for use with larger or heavier work pieces on benches with a maximum thickness of 100mm all spannfix clamping vices have a ball and socket joint which is easily rotatable and means the vice can be fixed for use in any direction slight pressure on the lever is sufficient to fix the workpiece into position bernstein 9