Proto® Open End Wrench, SAE, 3/8 x 7/16 in Wrench Opening, 5-7/8 in Overall Length, 29/32 x 25/32 in Open End Width, 7/32 in Open End Thickness, 15 deg Head, 33/64 x 29/64 in Throat Depth, Flat Handle, Forged Alloy Steel, Black Oxide
- Unique arc design increases surface contact
- Non-reflective black oxide finish for use where non-plated products are required
- Special heat treated alloy steel permits slim shanks for strength and durability
- Standard open end configuration