Manufactured from Chrome Molybdenum steel with a polished satin finish. Removes rusted, damaged and severely rounded hex head fasteners with ease. Patented twist design on short-arm grips tighter as they turn preventing fasteners from rounding. Keys range in length from 88mm to 225mm and in size from 1/16"" to 3/8"". Ball-end allows key to drive fixing at up to 25. Supplied in easy-access case with hanging tag for safe storage and quick key selection. One of a comprehensive range of Premier Hand Tools, suitable for daily professional use. Manufactured from Chrome Molybdenum steel with a polished satin finish. Removes rusted, damaged and severely rounded hex head fasteners with ease. Patented twist design on short-arm grips tighter as they turn. Prevents fasteners from rounding. Keys range in length from 88mm to 225mm and in size from 1/16"" to 3/8"". Ball-end allows key to drive fixing at up to 25. Contents: 1/16"", 5/64"", 3/32"", 1/8"", 5/32"", 3/16"", 1/4"", 5/16"", 3/8"". Supplied