The Sidchrome 1/4" & 1/2” Drive Socket Set has a diverse application ranging from smaller usage to larger fastening with the 1/2” Drive sizes. It includes 15 1/2” drive sockets in a range of sizes as well as a ratchet, extensions and spark plug sockets, then also includes a range of ¼” drive sockets and accessories including 14 sockets and a ¼” Drive pear head ratchet and extensions. 72 teeth ratchet with 5° arc swing required between each turn, ideal for high power applications or where limited arc swing or access is a consideration. The quick release button on the ratchet allows for easy removal of the fastener from the ratchet. The button triggers release of the socket with a ball detent, speeding up set up and pack up. 12 Point Socket profile on the 1/2” sockets maximises contact surface with the fastener enabling greater torque while reducing the risk of fastener rounding. Ideal for use on damaged, frozen or rusty fasteners. CONTENTS (8) 1/2” Drive Metric Sockets: 10, 11, 12, 13, 14, 15, 16, 17mm (7) 1/2” Drive A/F Sockets: 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4” (5) 1/2” Drive Accessories: Pear Head Ratchet, Extensions: 75 & 125mm, Spark Plug Sockets: 5/8, 13/16” (7) 1/4” Drive Metric Sockets: 4, 5, 6, 7, 8, 9, 10mm (7) 1/4” Drive A/F Sockets: 3/16, 7/32, 1/4, 9/32, 5/16, 11/32, 3/8” (3) 1/4” Drive Socket Accessories: Pear Head Ratchet, Extensions: 50 & 150mm | Sidchrome 37 Piece 1/4” And 1/2” Drive Met/AF Socket Set