Designed to enable safety wire holes to be drilled through the head of bolts or through nuts, across the diagonal. Designed to accept up to 3/4 inch diameter nut. Easy to use. Nut Saf-T-Blok requires that the nut or bolt be placed into the V groove, tighten down the holding screw, drill and deburr.
Helps thousands of mechanics by taking the headaches and hassle out of drilling safety wire holes in bolts and nuts. Easy to use; Saf-T-blok holds the bolt steady after you thread it in to the required depth. You then drill the hole through the center with no risk of misalignment. Saf-T-Blok is available in 4 sizes: