Ball head long hex key with 9 pcs

MODE:HKQ03

Specification:1.5mm.2.0mm.2.5mm 3.0mm.4.0mm.5.0mm.6.0mm.8.0mm.10.0mm

Surface treatment:chrome

Material:45#steel

Packing: 9pcs/set, 1set/card packing, 10sets/inner box, 5 inner boxes/CTN. Or we can do the packing as you requirement.

Hex key or Allen key (also known by various other synonyms ) 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 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 works like new

Manufacturing methods:

• Hex socket screw heads are usually made by stamping the head with a die, plasticly deforming the metal. Other ways to generate the hex socket include linear broaching and rotary broaching. Broaching the heads with a linear broach is essentially the metalworking analog of mortising wood with a mortising machine; a hole is drilled and then the corners are broached out. This operation often leaves little telltale curled chips still attached at the bottom of the socket. These are negligible for most applications.
• Hex keys are made by imparting the hexagon cross-section to steel wire (for example, with a die), then bending and shearing.