Made out of a heavy-duty industrial grade Cr-V. Includes a spring-loaded ball bearing and chamfered tips. Are used in the installation of a pneumatic screwdriver, electric screwdriver, pneumatic drill, manual screwdriver and other installations for the hexagonal tool. Material: Carbon Steel Colour: Silver Package Size: 13cm x 9cm x 1cm Weight: 0.182kg Note: Please note that this product only includes the socket adaptors set, no other items. Due to lighting and screen settings, please allow a slight difference in colour. Due to manual measurement, please allow a slight difference in size. What's in the box? 2 x 1/4" 65mm long 2 x 3/8" 65mm long 2 x 1/2" 73mm long