Specification

OP-311LH3 Product Description
The OP-311LH3 is an angle pneumatic impact wrench equipped with a 3/8-inch square drive and a two-hammer impact mechanism. It is designed for fast bolt tightening and removal in confined areas where a conventional straight impact wrench is difficult to use. With a maximum torque of 90 Nm and M10 bolt capacity, it is suitable for industrial assembly lines and high-productivity manufacturing environments.
Features and Characteristics
- Two-hammer impact mechanism provides high impact frequency and stable torque delivery.
- Low reaction force improves tool control and reduces operator fatigue.
- Angle-head housing provides convenient access to restricted working spaces.
- Forward and reverse directions can be controlled with one hand.
- Self-locking reverse button helps prevent unintended direction changes.
- Integrated hook allows the tool to be used with a spring balancer for improved safety and efficiency.
- Long, compact body design allows the drive head to reach deep or obstructed fastening positions.
Technical Specifications
- Model: OP-311LH3
- Product series: OP-311LH Series
- Impact mechanism: Two Hammer
- Anvil size: 3/8 inch
- Bolt size capacity: M10
- Working torque: 50 Nm / 37 ft-lb
- Maximum torque: 90 Nm / 66 ft-lb
- Free speed: 8,500 RPM
- Air consumption: 240 l/min / 8.5 CFM
- Operating pressure: 90 PSI / 6.2 bar / 6.3 kg/cm²
- Air inlet: PT 1/4 inch
- Overall length: 265 mm / 10.43 inches
- Net weight: 1.58 kg / 3.48 lb
- Sound level: 90 dB(A)
Product Advantages
- Angle-head design reaches confined and difficult fastening areas.
- Maximum torque of 90 Nm provides dependable performance for M10 bolts.
- High 8,500 RPM speed supports faster assembly operations.
- One-hand forward and reverse control improves working efficiency.
- Low counter-reaction helps reduce fatigue during extended operation.
- Spring-balancer hook supports safer and more comfortable production-line use.
- Durable two-hammer mechanism is suitable for frequent industrial operation.
Applications
The OP-311LH3 angle pneumatic impact wrench is suitable for:
- Mechanical and industrial assembly lines.
- Motor and machinery production or maintenance.
- Electrical, aluminum and metalworking industries.
- Carpentry, furniture and rattan manufacturing.
- Hardware and M10 bolt assembly.
- Fastening operations inside machinery and other restricted spaces.