Reference: Wrenches set (double offset)
Materials: Beryllium copper Cu-Be
Models: SET socket Wrenches
Hardness: 283-365 Brinell.
Optional: as lose item and also available in inches
Protection: Tools made of Cu-Be alloy can be used in all groups (I, IIA, IIB, IIC) in a safe way, with the only exception of acetylene, with which copper might react and create highly explosive acetylite gases.