Proto® Open End Wrench, Metric, 21 x 23 mm Wrench Opening, 257.2 mm Overall Length, 45.2 x 42 mm Open End Width, 9.1 mm Open End Thickness, 15 deg Head, 1-3/64 x 63/64 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
- Unique arc design increases surface contact
- For greater access in tight work areas