9pcs L Type Hex Allen Key Set with Star Head
Specifications
1.9pcs hex key wrench set-longer
2.CR-V material
3.chrome finished
4.plastic holder packing
Some features of hex keys are:
The tool is simple, small and light
The contact surfaces of the screw or bolt are protected from external damage
There are six contact surfaces between bolt and driver
The tool can be used with a headless screw
The screw can be inserted into its hole using the key
Torgue is constrained by the length and thickness of the key
Very small bolt heads can be accommodated
The tool can be manufactured very cheaply, so one is often included with products requiring end-user assembly
Either end of the tool can be used to take advantage of reach or torque
The tool is L-shaped
The tool can be reconditioned using an electric grinder by removing the worn-out part, and then wor…