A seris of tools
SKH. Hex Head Wrench Set Metric with 1.5mm、2.0mm 、2.5mm、3.0mm
• SH Ratch Screwdriver
This tool is a ratch screwdriver as well, but the main different is the handle which uses square shape instead of the round shape. Although the diameter and the rubber material were been reduced, it provide the same drag. The weight of the handle also decreases to 70 g from 90 g . The internal construction of the ratch screwdriver is quite firm with the standard of industrial level, even to disassemble the engines. Not the normal stuff can be mention in the same breath. Other four hexangular tools near by are metric system.