The Blue Spot Tools 4-Piece nut splitter is manufactured from heat treated carbon steel for increased durability and features a heavy duty 50-55 HRC chrome molybdenum nut splitting head, capable of splitting up to 27mm (1 1/16"") nuts. Nut splitter sizes included: 1x 9-12mm (3/8"-15/32") 1x 12-16mm(15/32"-5/8") 1x 16-22mm(5/8"-7/8") 1x 22-27mm(7/8"-1 1/16")
