5.5mm-46mm Double Open Ended Spanner Hand Tool Wrench Metric High-carbon steel 

Features:

Material: High-Carbon Steel

Hardened and tempered

Different size on each end

Overall high carbon steel forged anti-embroidery and dirt-resistant

Integral heat treatment can add force, use hardness, high torque, and long service life

High quality fully polished mirror finish

For DIY / Professional Use

Applications: Auto repair, machine repair, engineering, home decoration, etc.