1" Square Drive O-Ring & Pin to Suit 17-70mm Socket, 3 Pcs

• Designed to secure sockets and other accessories to drive tools through the square drive.
• The retaining pin is subsequently held in place by the “O” ring.
• Pin manufactured from hardened and tempered spring steel, “O” ring from high-grade rubber.
• To suit sizes: 1" Sq. Dr. 17mm to 70mm(or imperial measurement equivalent).
• O'Ring size: 44.2 x 5.7mm.
• Pin Size: 5 x 45mm.