Proto® Open End Wrench, SAE, 3/16 x 1/4 in Wrench Opening, 3-7/8 in Overall Length, 1/2 x 7/16 in Open End Width, 5/32 in Open End Thickness, 15 deg Head, 17/64 x 1/4 in Throat Depth, Flat Handle, Forged Alloy Steel, Satin
- Satin finish provides corrosion resistance and a slip-resistant grip
- Special heat treated alloy steel permits slim shanks for strength and durability
- Standard open end configuration
- Increased torque applied to fastener with fewer rounded edges
- Unique arc design increases surface contact
- Anti-slip design (ASD) wrench has a locking groove prevents slippage and knuckle injury