Allen Key & Hex Screwdrivers

Allen Key & Hex Screwdrivers

AIMS Industrial stocks allen key screwdrivers — also known as hex screwdrivers or hex key drivers — for driving fasteners with internal hexagonal recesses. Unlike standard L-shaped allen keys, hex screwdrivers provide the ergonomics and torque control of a conventional screwdriver handle with a hex blade, making them the preferred tool for repetitive fastening tasks, production assembly and precision machinery maintenance where control and speed matter. Available in T-handle, straight-blade and stubby formats to suit different access requirements and torque needs.

Ball Point Hex Screwdrivers

Ball-point hex screwdrivers have a spherical ground tip that allows the tool to engage the fastener head at angles of up to 25 to 30 degrees off-axis — useful when working in confined areas where the tool cannot be aligned straight-on to the fastener. The ball end sacrifices some torque transfer compared to a flat hex tip at high torque, so ball-end hex screwdrivers are best suited to installation and snugging rather than final high-torque tightening, which should be done with a flat-tip driver or torque wrench. Ball-point format is available across the full metric size range from 0.7mm to 10mm and common imperial sizes.

Standard (Flat) Hex Tip Screwdrivers

Standard flat hex tip screwdrivers engage the full face of the internal hex socket and transfer maximum torque to the fastener. These are the correct tool for tightening socket head cap screws, grub screws and set screws to specification, and for breaking loose corroded or high-torque fasteners where the ball end would round off. T-handle flat hex screwdrivers allow the palm of the hand to apply downward pressure while turning, which maintains engagement in the fastener socket and reduces cam-out risk under higher torque.

T-Handle Format

T-handle hex screwdrivers provide the most ergonomic format for production assembly and high-cycle use — the T-bar allows rapid spinning between fingers for fast running-down of fasteners while the palm grip provides torque application at the tightening stage. T-handle hex screwdrivers are the standard in automotive assembly, machinery maintenance, electronics and wherever socket-head cap screws are used in volume. The T-handle format also makes the tool easier to control in tight spaces compared to a conventional handle.

Metric and Imperial Sizes

Metric hex screwdrivers cover the standard cap screw socket sizes from 0.7mm (M1.4 cap screw) through to 10mm (M12 cap screw). Imperial hex sizes from 1/16″ through to 3/8″ cover the common UNC and UNF cap screw range used on North American and legacy equipment. Having the correct size is critical — an undersized or worn hex tip will round the socket in the fastener head, making removal significantly more difficult. For help selecting the right hex screwdriver format or size range for your application, contact our team. AIMS Industrial has been supplying precision hand tools to Australian industry since 1988.