Professional tool for commercial or occasional use -Metric combination spanners -Manufactured from chrome vanadium steel for strength and durability -Combination design, open end spanner on one end and a ring spanner on the other end. -Metric Spanners SET INCLUDES THE FOLLOWING SIZES - 8mm / 9mm / 10mm / 11mm / 12mm / 13mm / 14mm / 15mm / 16mm / 17mm / 18mm and 19mm -12 size of metric spanners ranging from 8mm - 19mm -Comes complete in a tool roll for easy storage and transportation