ITEM NAME:4pcs 1/4 3/8 1/2 Ratchet Socket Wrench Socket Adapter Spanner Set Converter E9T6 4pcs 1/4 3/8 1/2 Ratchet Socket Wrench Socket Adapter Spanner Set Converter E9T6 4pcs Convertor Set This set allows you to mix and match drive sizes for your sockets, ratchet handles, extension bars and other accessories. Perfect tool for mechanics, engineers, carpenters or DIY enthusiasts Sprung Ball bearing fitting retainer Size: 1/2 inch to 3/8 inch - (12.5mm square hole to 9.5mm square head) Length: 36mm 3/8 inch to 1/4 inch- (9.5mm square hole to 6.3mm square head) Length: 26mm 3/8 inch to 1/2 inch - (9.5mm square hole to 12.5mm square head) Length: 35mm 1/4 inch to 3/8 inch - (6.3mm square hole to 9.5mm square head) Length: 25mm Height: about 25mm, 26mm, 35mm, 36mm Hardness: 60HRC color: black Material: Chrome Vanadium Steel Package Contents: 1 Set * 4pcs Drive Socket Wrench Adapter Hand Tools Set Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.