Draper-5-1-4-Hex-x-1-4-3-8-&-1-2-Square-Drive-Adaptors-Draper-00005-Designed-for-use-in-conjunction-with-any-1-4-hexagon-drive-unit-i-e-h&-electric-or-air-screwdrivers-to-drive-1-4-3-8-&-1-2-square-drive-sockets-Comprises-1-4-hexagon-x-1-4-square-1-4-hexagon-x-3-8-square-&-a-1-4-hex-x-1-2-square-adaptors-Manufactured-from-chrome-vanadium-steel-hardened-tempered-&-chrome-plated-Each-square-driver-end-incorporates-a-spring-loaded-retaining-ball-for-secure-so