Proto J1028A Double Box Wrench, 7/8 in x 15/16 in, 12-Point, 13-1/2 in OAL, Alloy Steel, Chrome 393EP3 They measure turning force electronically

They measure turning force electronically for high accuracy compared to analog torque wrenches

Head Size 1 3/8 in

Socket Length 1 3/8 in

E-3469 Minimum Cutting Capacity 1 1/4 in Maximum Cutting Capacity 3 1/2 in Material Application Aluminum

S-20 Application Cutting Cable Type Wire Rope Cutting Capacity - Cutting Die Up to 20mm Cable Range 20mm Material Cut - Cutting Die Wire Rope Compatible with Manufacturer Model Number S-16

Proto J1028A Double Box Wrench, 7/8 in x 15/16 in, 12-Point, 13-1/2 in OAL, Alloy Steel, Chrome 393EP3 They measure turning force electronicallyFull polish wrenches meet and exceed stringent aerospace specification AS4984A which requires tools to have a thicker nickel chrome coating for greater corrosion resistance 12 point box end is countersunk for easy application to the fastener, helping to improve speed and access. Fits 4, 6 and 12 point fasteners Offset box end allows access to recessed fasteners and keeps hands clear of obstructions Material Alloy Steel Finish Chrome SAE or Metric SAE