1/4inch F to 3/8inch M , 3/8inch F to 1/4inch M , 3/8inch F to 1/2inch M , 1/2inch F to 3/8inch M , 3/4inch F to 1/2inch M, 1/2inch F to 3/4inch M, 3/4inch F to 1/2inch M. And 1/4inch Hex Shank: 1/4inch F to 1/2inch M, 1/4inch F to 1/4inch M, 1/4inch F to 3/8inch M to give you all the sizes you need for transition from socket to socket smoothlySquare drive converters are constructed from heavy-duty die- and heat-treated chromium vanadium steel to withstand high torque, ensuring reliability and Spring-loaded detent balls and the through hole on end securely locks the adapter to tang. It is perfect for impact drivers, impact wrenches and impact wrench ratchets, and can be enlarged or reduced in size according to the needs of in the garageThe Square Drive Conversions and Hex 1/4 Shank fits all quick-change systems and standard drill chucks maximum versatility. Designed for drivers, wrenches and ratchets. It can be used with pneumatic tools, electric tools or driving toolsThis impact socket adapter kit is treated with a black phosphate coating that is both rust and resistant for unparalleled durability, you can use and preserve it for a long time. Laser marking and stamping markings make all models easy to store, read and quickly identifyColour:As ShownMaterial:Chrome vanadium steelPackage Contents:1 set x 1/2 to 3/8 impact adapterOnly the above package content, other products are not included.Note: Light reflection 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.