●JIS standard product ●S53C●Surface treatment: Nickel chrome plating [Features] ●Both ends are open-end type, making this product suitable for final tightening work. ●JIS certified product (sizes up to 24 x 27 mm). [Application] * Tightening of hexagonal bolts and nuts 【use】 ●Face size (mm): 21 x 26 ●Total length (mm): 365 ●Plate thickness (mm): 13×13.5 ●Mass (g): 450 [Material/Finish] ●S53C ●Surface treatment: Nickel chrome plating [Set contents/accessories] 【Note】