General description Set of square drive adaptors designed to convert ratchet spanners into standard ratchets, allowing for versatile use in various applications. Technical specifications Sizes: 1/4""D for 10mm 3/8""D for 13mm 1/2""D for 19mm Material: Chrome Molybdenum with a steel socket release button Usage Compatible with single Hex (6pt) ratchet spanners Transforms ratchet into a socket driver for enhanced functionality