Proto® J1120LB Fractional Double Box End Wrench, 5/16 x 3/8 in, 12 Points, 6-15/16 in OAL, 15 deg Offset
Item #BC397776

Proto® Double Box End Wrench, Fractional, 5/16 x 3/8 in Wrench Opening, 12 Points, 6-15/16 in Overall Length, 15 deg Offset, 37/64 x 15/32 in Box End Width, 17/64 x 15/64 in Box End Thickness, Alloy Steel, Black Oxide
  • Allows for fine indexing, helping to improve speed and access
  • Non-reflective ProtoBlack™ finish for use where non-plated products are required
  • Box ends incorporate the TorquePlus™ system
  • Fits 4, 6 and 12 point fasteners
  • The TorquePlus™ design is a high performance drive configuration which allows for quick and easy wrench engagement to the fastener flats, not the corners
  • The TorquePlus™ configuration employs a radius corner design, shifting contact area and stress away from the fastener corners and distributing contact stresses over a large area of the box end, minimizing slippage
  • The TorquePlus™ internal design minimizes fastener rounding, helps to extend fastener life, and allows the user to more easily turn worn, rounded, or rusted fasteners
MaterialAlloy Steel
TypeFractional
FinishBlack Oxide
Overall Length6-15/16 in
Number of Points12
Wrench Opening5/16 x 3/8 in
Box End Width37/64 x 15/32 in
Offset Angle15 deg
Box End Thickness17/64 x 15/64 in
WarrantyLifetime