Jet 391109-6mm Number Stamp Set Accessories • Wrenches are marked with

• Wrenches are marked with part number and size for easy identification

They are specifically designed for root and hot pass weld cleaning in pipe joining applications

production line workers

Industrial heat treated Chrome Vanadium steel

Jet 391109-6mm Number Stamp Set Accessories • Wrenches are marked withManufactured from high quality steel and induction hardened for durability and extended life , Stamping end hardened to 58 62 HRC striking end hardened to 38 43 HRC to prevent splintering , Striking ends are beveled to prevent breakage and to increase operator safety , Sets contain: Numbers: "0 Inch , "9 Inch (6 and 9 are interchangeable) , Letters: "A" , "Z" and " and " (ampersand)