Professional spanner for commercial or occasional use 10mm ratchet spanner Manufactured from chrome vanadium steel for strength and durability Combination spanner so one end open and the other a closed ratchet style Metric spanner 10mm spanner Total length of the spanner 155mm Reversible by simply turning the ratchet over in a 180 degree motion 72 teeth so works in 5 degree increments so ideal for access in restricted awkward areas As well as this it also makes less chance of the item slipping which allows greater force to be applied