<br>Features: <br> <br>Wide usage: <br>Designed for reaching narrow spaces where ordinary straight tools cannot enter, these rotatable socket adapters can be applied to electric screwdriver, pneumatic drill, manual screwdriver and other installations. <br> <br>Specifications: <br>Size: 1/ 4 inch, 3/ 8 inch and 1/ 2 inch <br>Color: black <br>Material: chrome vanadium steel <br> <br>Package includes: <br>6 x Hex socket adapters <br> <br>Warm notes: <br>Please allow a little error on the size due to manual measurement. <br>The color might exist slight difference due to different displays. <br>Please read the size instruction carefully before purchasing.