Screwdriver (impact) Topex 39D256 8×300 mm

The Topex impact screwdriver 39D256 with an 8×300 mm blade is a hand tool designed to transfer rotational force by converting a hammer strike into controlled torque. The 300 mm overall length provides reach into recessed or partially obstructed fasteners, while the 8 mm blade diameter is suitable for common slotted and some insert-style screw heads. The tool is intended for situations where a standard screwdriver cannot generate sufficient torque and an impact action is required to loosen or tighten stubborn screws and small fasteners.

Advantages

The impact mechanism allows short, forceful rotational impulses that reduce cam‑out and increase effective torque compared with a regular screwdriver. The longer shaft improves access to confined areas and helps maintain alignment when working at odd angles. The robust blade design and hardened tip resist wear during repeated impact use, providing longer service life under mechanical and automotive maintenance conditions.

Suitable for

• Loosening rusted or seized slotted screws and fasteners
• Automotive repair and maintenance tasks requiring extra torque
• Mechanical assembly and disassembly where controlled impact force is needed
• Construction and installation work in confined or recessed locations

Key specifications

• Blade diameter: 8 mm
• Overall length: 300 mm
• Tool type: impact screwdriver (striking type)
• Application: designed for delivering rotational impulse by hammer strike
• Tip: hardened for impact resistance (suitable for slotted heads and compatible inserts)

How to use

Place the screwdriver tip into the screw head ensuring correct seating to avoid slipping. Hold the handle firmly and align the shaft with the fastener axis to maintain engagement. Apply a controlled hammer strike to the handle end while keeping steady axial pressure; the impact will generate a rotational impulse to turn the fastener. For tightening, use measured strikes and check fastener torque frequently to avoid over‑tightening. For removal, begin with short strikes and increase force as needed, taking care to prevent damage to the screw head or surrounding material.

Usage recommendations

Use appropriate personal protective equipment such as safety glasses when striking the tool. Select the correct tip orientation and ensure the screw head is not excessively damaged before using impact action. Combine with penetrating lubricant for rusted fasteners when necessary, and avoid using the tool on fragile or soft materials that could be deformed by impact torque.