Vmotor Chrome Vanadium C Spanner Tool Adjustable Hook Wrench - 2-4 3/4"(51-121mm) Go to amazon.com Related posts Top 9 recommendation chrome vanadium spanners FeatureHandle Length : approx 8 inchFits sizes: 2-4 3/4"(51-121mm)Used to tighten side slot nuts on collars,lock nuts and bearingsConvenient and easy to use DescriptionUsed to tighten side slot nuts on collars,lock nuts and bearings