Belt Tensioner Wrench Set 15pc

Material:# 42CRMO for sockets and carbon steel for wrench

Coating: chrome plated

Moulding Tech: drop forged

heat treated,HRC 42-46

Bi-Hex sizes: 12, 13, 14, 15, 16, 17, 18, 19mm

Star* sizes: E10, E12, E14, E16, E18.