TOP Impact Conversion Concave 4mm Diameter to Convex 6mm No or Pin Made in Japan One-Touch Adapter, Type, Diameter, O-Ring Required, EPA-46,

Uses: Construction, civil engineering, automobile and machinery assembly and dismantling work, etc. Total length: 75mm Square drive (convex): 19 mm Drive angle (concave): 12.7 mm Weight: 452g Caution: Be sure to attach the O-ring and tweezers securely to the impact wrench before performing any work. When attaching an impact socket to the One-Touch Adapter Series, be sure to align the pin hole with the anti-drop ball on the adapter. Do not use the tool for any purpose other than its intended use.