3/4" Square Drive O-Ring & Pin to Suit 17-49mm 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: 3/4" sq dr. 17mm to 49mm(or imperial measurement equivalent).
• O'Ring size: 5 x 36mm.
• Pin Size: 4 x 35mm.