Made from high quality special chrome vanadium steel (SNCM20V).
It is an alloy steel that combines hardness and wear resistance.
In order to ensure uniform and highest precision tempering (unique heat treatment) hardness (HRC60°±1°), we do not use a continuous furnace, but instead use a completely non-oxidizing, decarburization correction quenching method using a closed furnace.
It can be tightened and removed with continuous rotation, reducing work time by several times compared to conventional wrenches.
Set of 7: 1.5mm, 2.0mm, 2.5mm, 3.0mm, 4.0mm, 5.0mm, 6.0mm
Set of 9: 1.5mm, 2.0mm, 2.5mm, 3.0mm, 4.0mm, 5.0mm, 6.0mm, 8.0mm, 10.0mm
