Long Arm Ball Point Hex Ket Set - 7pc (Metric 1.5 ~ 6mm)
A hex key or Allen key is a tool of hexagonal cross-section used to drive bolts and screws that have a hexagonal socket in the head (internal-wrenching hexagon drive).
Some features of hex keys are:
- The tool is simple, small and light
- The Ball End contact works in hard to reach areas eith an 25 degree Angle entry
- 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
- Torque 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 allow natural hand and wrist rotation.