Jet 391109-6mm Number Stamp Set Plumbing Tools Couplers have 4-ball "positive locking"

Couplers have 4-ball "positive locking" mechanism

Please specify arbor size on 10-Inch and 12-Inch brushes

4140 chrome molybdenum high impact steel

This item is used for Handtools & Tool Organizers

These Aluminum pipe wrenches are nearly 40 percent lighter than comparable cast-iron models of the same size

Jet 391109-6mm Number Stamp Set Plumbing Tools Couplers have 4-ball "positive locking"Manufactured 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)