Manufactured from heat treated and hardened Chrome Vanadium steel with a blackened finish. Keys range in length from 75mm to 180mm and in size from 1/16" to 3/8". Ball-end allows key to drive fixing at up to 30. Supplied in easy-access case with hanging tag for safe storage and quick key selection. SIEGEN BY SEALEY - Part of the Siegen by Sealey range of quality tools at competitive prices. HEAT TREATED CHROME VANADIUM STEEL Hardened for durability and strength. BLACKENED FINISH For added corrosion resistance. RANGE OF KEY LENGTHS Range of length 75mm to 180mm and in size from 1/6" to 3/8". BALL-END Allows key to drive fixing at up to 30. 9PC SET - Contents: 1/16", 5/64", 3/32", 1/8", 5/32", 3/16", 1/4", 5/16", 3/8" SUPPLIED IN EASY ACCESS CASE With hanging tag for .