Symmetrical double-head design
Both ends have the same specification cross-slot heads. If one end is worn or chipped, it can be immediately flipped to use the other end, and the batch head can be reused without replacement, extending the service life of a single piece by twice and reducing the frequency of tool replacement.
Precise grinding of slot shape
The cross-slot is machined by CNC and then precisely ground. The slot walls are smooth without knife marks, and the fit with the screw head reaches over 95%, effectively transmitting torque without slipping, and reducing the wear on the screw head.
Overall hexagonal tool handle
The middle part is a 1/4 inch (6.35 mm) standard hexagonal column, compatible with the mainstream electric tool chuck on the market. The hexagonal structure prevents slipping and idle rotation, ensuring efficient power transmission.
Variable diameter transition reinforcement
There is a transition arc between the hexagonal column and the cross head, eliminating stress concentration. It is not prone to breakage under the high-frequency impact load of the impact driver and has excellent fatigue resistance.
Dark gray rust prevention treatment
The surface is treated with 180°C to 200°C high-temperature blackening or manganese-based phosphating, forming a dense oxide film. It is rust-proof, wear-resistant, and aesthetically pleasing. It is more visually distinct from the bright white industrial look of ordinary galvanized batch heads.

Double-head design doubles the cumulative usable lifespan of a single bit compared to traditional single-head bits, reducing the annual tool procurement cost by 30% to 40% for large-scale production lines.
Efficiency improvement in replacement
No need to search for replacement bits in the tool kit. After wear, the switch can be completed in 2 seconds, and the assembly rhythm of the production line is not affected. The overall efficiency is increased by more than 15%.
High torque and impact resistance
Using S2 alloy steel for overall quenching, the hardness reaches HRC 58-62. Combined with the optimized slot design, it can withstand impact torques of more than 30 Nm from electric tools, without slipping or breaking teeth.
Strong compatibility for general use
Standard 1/4 hexagonal handle is compatible with all brands of electric screwdrivers, impact drivers, and ratchet wrenches. The PH2 slot head is compatible with M3 to M6 specification cross-head screws, covering more than 90% of common application scenarios.
High quality stability
The overall hot forging process has no welding points, avoiding the risk of fracture of split-welded bits. The production batch size has good consistency in dimensions, ensuring the stable torque transmission performance of each bit.

Automobile assembly line
Body interior, electrical wiring harness, fastening of components' screws, double-head design matches the fast pace of the production line, reduces downtime for tool changes, and enhances JPH (hourly production rate).
Electronic and electrical manufacturing
Assembly of household appliances, computers, and mobile phones. Precise slot-type protective screws prevent the heads from being worn out, and the blackened surface does not reflect light, facilitating visual inspection.
Building and decoration construction
Installation of gypsum board keels, door and window hardware, and lighting fixtures. Impact drivers are used in conjunction with them for efficient and effortless work, and the double-head design is durable and suitable for high-intensity continuous operations.
Furniture batch assembly
Flow-line production of panel furniture, with batch heads and pneumatic screwdrivers cooperating to quickly complete the assembly of three-in-one connectors and hinges.
Equipment maintenance and repair
Daily maintenance and repair of factory equipment. A batch head is compatible with multiple screw specifications, reducing the amount of tools carried and improving the response speed of maintenance.