The inner hexagonal sleeves are arranged according to the bolts type, which can be selected according to the needs.
Especially suitable for bolts or nuts with very narrow turning position or very deep depression.
Composed of several inner hexagonal sleeves and one or more handles of the upper sleeve.
A special product for mechanical connection of steel bar, including cold extrusion sleeve, cone thread sleeve and straight thread sleeve.Can be used to connect ribbed steel bars.
Can be used as wrench, socket wrench, is a special tool to tighten or unscrew.