Feature:Nut Splitter is a tool used to remove damaged or seized nuts from bolts or threaded studs.Huge time saver when removing frozen, rusted, or rounded nutsFor the removal of damaged or corroded nuts without damaging the bolts threadBest for the home/ workshop/hobbyist etc.Specifications:Material: chrome plated finish and hardened steel bodySizes:5/16"-1/2" 9-12mm Nut Splitter. Requires 12mm Spanner to tighten.1/2"-5/8" 12-16mm Nut Splitter. Requires 14mm Spanner to tighten.5/8"-7/8" 16-22mm Nut Splitter. Requires 18mm Spanner to tighten.7/8"-1-1/16" 22-27mm Nut Splitter. Requires 21mm Spanner to tighten.includes:1/4 x Nut Splitter Tool Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. YJL official store