Beryllium Copper Stepped Ring Wrench Spanner Point End Zapworx Stepped Construction Ring Wrench Point End Sizes All Zapworx Explosion Protection Tools are available in Beryllium Copper or Aluminum Copper Zapworx Stepped Construction Ring Wrench Point End Size Chart Zapworx Stepped Construction Ring Wrench Point End Imperial Size Chart Zapworx Stepped Construction Open Wrench Point End No Spark Zapworx Construction Open Wrench with Point End Non Sparking