SKF Hook Spanner Wrench HN 12-13 USED SKF Hook Spanner Wrench HN 12-13 USED Unit shows signs of previous mounting/use and may have some mild scuffing/shelf wear and/or superficial surface rusting on O.D. Measuring Devices shown in picture for scale only – they are not included with listing. Government Surplus Free Shipping Used Part – Please Read Full Description.Free Shipping