The Techno AT243 is a professional 1/2-inch pneumatic impact wrench designed for high-torque fastening and loosening applications. It features a 12.7mm (1/2-inch) square drive, twin-hammer impact mechanism, 8000 RPM free speed and a published maximum torque of 850Nm. Techno's price list identifies the AT243 as a 1/2-inch twin-hammer impact wrench with 8000 RPM, while current product listings specify the 850Nm torque rating.

The tool operates using compressed air at approximately 6.3 bar (90 PSI) and has an air consumption of around 8 CFM. Its pneumatic impact mechanism delivers repeated hammering force to the drive spindle, allowing the operator to loosen stubborn, seized or over-tightened fasteners more effectively than a conventional hand wrench.

The twin-hammer mechanism is particularly useful for repetitive automotive and industrial fastening work. The AT243 combines a robust composite and alloy-steel construction with a relatively compact handheld design, making it suitable for professional garages, workshops, machinery maintenance and heavy-duty mechanical applications.

Product Features

1/2-Inch Square Drive: Uses a standard 12.7mm square drive for compatible impact sockets.
850Nm Maximum Torque: Provides high torque for demanding fastening and loosening operations.
8000 RPM Free Speed: High rotational speed supports fast and efficient fastening operations.
Twin Hammer Mechanism: Delivers repeated impact force for loosening stubborn and tightly fastened nuts and bolts.
Pneumatic Operation: Powered by compressed air, making it suitable for continuous professional workshop use.
6.3 Bar Working Pressure: Designed for operation at approximately 6.3 bar / 90 PSI.
8 CFM Air Consumption: Requires approximately 8 CFM of compressed air under the listed operating conditions.
Composite & Alloy-Steel Construction: Combines lightweight handling characteristics with durable internal/tool construction.
Compact Design: Helps the operator access fasteners in relatively confined working areas.
Forward/Reverse Control: Allows convenient switching between tightening and loosening operations.
High-Torque Performance: Suitable for stubborn, corroded and seized fasteners.
Professional Pneumatic Tool: Designed for mechanics, technicians, maintenance professionals and industrial users.
Reduced User Effort: Impact action performs much of the torque work, reducing the physical effort required compared with manual loosening.

Product Specifications

Brand: Techno
Product Type: Air Impact Wrench / Pneumatic Impact Gun
Model Number: AT243
Mechanism: Twin Hammer
Square Drive Size: 1/2 Inch / 12.7mm
Maximum Torque: 850Nm
Free Speed: 8000 RPM
Working Air Pressure: 6.3 Bar / 90 PSI
Air Consumption: 8 CFM
Power Source: Compressed Air
Body Material: Composite
Internal/Structural Material: Alloy Steel
Operation: Pneumatic
Application: Heavy-duty tightening and loosening.

Techno 1/2 Inch 12.7mm Twin Hammer Impact Wrench AT243 | 850Nm High-Torque Pneumatic Air Impact Gun with 8000 RPM, 6.3 Bar Working Pressure for Automotive, Heavy Machinery, Garage, Workshop & Industrial Applications

Have a question?