Wrench and Screwdriver Combined Two-Purpose Tool

The problem

Repair tasks often require switching between different tools for nuts, bolts, and screws. Carrying a full set of wrenches and screwdrivers takes up space in a toolbox and adds weight. Standard adjustable wrenches cannot drive screws, and standard screwdrivers cannot grip hexagonal heads. Users lose time changing tools and may forget which size was needed for a specific job.

The solution

1. A rotary gear shaft (20) runs through the center of the tool, connecting a gear portion (21) to a handle end.
2. Two clamping units (11) sit on either side of the shaft. Each has a serration plate (112) that meshes directly with the gear portion.
3. Turning the shaft rotates the gear, which drives the serrated plates. This moves the clamping main bodies (111) closer together or further apart.
4. When opened, the jaws create a clamping space sized to fit a bolt head or nut.
5. When closed, the inner surfaces of the jaws align to form a single screw groove insertion part (splicing portions 50), acting as a flathead or Phillips screwdriver tip.
6. A gear limiting part (60) and groove (70) on the sleeve sections lock the relative rotation, fixing the jaw width once set.

Who it is for

• General contractors who need a compact tool for mixed fastener jobs without carrying multiple drivers.
• DIY homeowners looking for a simple, all-in-one tool for basic repairs and furniture assembly.
• Automotive kit manufacturers producing emergency roadside kits where space is limited.
• Industrial maintenance teams needing quick access to both wrenching and screwdriving functions in tight panels.

How it works

The main parts

Operating steps

1. Set as Wrench: Turn the gear shaft to open the clamping units. The serrations drive the jaws apart until they fit around a bolt head. Engage the locking collar (limiting part into groove) to hold the size.
2. Set as Screwdriver: Turn the shaft to bring the clamping units together. The splicing portions align to create a continuous slot (straight or cross shape).
3. Drive Fasteners: Apply torque through the handle. The gear and sleeve structure transfer force to the jaws or the driver tip.

Applications

Home Repair Kits

Ideal for wall-mounted tool organizers where space is scarce. One tool replaces three common drivers, simplifying storage for families.

Automotive Emergency Tools

Useful in glovebox kits for tightening battery terminals or adjusting mirror mounts. The ability to switch from a nut to a screw quickly saves time during roadside checks.

Furniture Assembly

Perfect for assembling flat-pack furniture that uses both cam locks (requiring a wrench-like action) and standard screws. Reduces the need to swap tools repeatedly.

Industrial Maintenance Panels

Technicians working in electrical cabinets often face mixed fasteners. This tool allows quick adaptation to hex-head terminal screws without reaching for a separate driver.

Where it is less suitable

• High-torque industrial applications: The mechanical complexity and moving parts may wear faster than solid forged wrenches under heavy continuous load.
• Precision electronics: The clamping mechanism is designed for general hardware, not microscopic or fragile components requiring calibrated torque.
• Extreme environments: Moving gears and serrations may jam if exposed to heavy dust, mud, or corrosive chemicals without sealing.