DB3N4-S Dial Gauge Torque Wrench, 0.3～3N.m

Tohnichi DB3N4-S is a high-precision dial indicating torque wrench engineered for quality inspections, precise torque verification, and controlled tightening in demanding assembly environments such as electronics manufacturing, automotive component installation, and precision instrumentation. Delivering accurate measurements from 0.3 to 3 N·m via a 1/4" square drive, this manual tool features a movable dial for intuitive preset torque application, a memory pointer for peak torque capture, and length-independent accuracy to ensure reliable results regardless of grip position. Lightweight and ergonomic with a protective dial cover and index finger handle for low-force application, it supports bi-directional operation (clockwise and counterclockwise) for versatile use in tightening and loosening tasks, promoting operator efficiency and reducing the risk of over-torquing in ultra-low-force applications.

Key Performance Specifications

• Torque Range: 0.3 - 3 N·m (2.66 - 26.6 in-lbs)
• Graduation: 0.05 N·m
• Accuracy: ±3% of indicated value
• Drive Size: 1/4" Square (6.35 mm)
• Loading Direction: Bi-directional (CW and CCW)

Physical and Environmental Specifications

• Overall Length: 203.5 mm (8.0")
• Weight: 0.4 kg (0.88 lbs)
• Handle Diameter: Approximately 18 mm (compact for low-torque control)
• Operating Temperature: 14°F to 104°F (-10°C to 40°C); suitable for standard workshop conditions
• Storage Conditions: Dry environment to prevent corrosion; calibration recommended annually

Key Features

• Movable Dial Face: Rotate to preset desired torque and tighten until pointer reaches "0" for effortless control and repeatability
• Memory Pointer: Follower hand captures maximum torque achieved, enabling easy post-operation verification without external tools
• Length-Independent Accuracy: Consistent performance irrespective of hand placement on the handle, ideal for varied operator techniques
• Protective Dial Cover: Full-surround guard shields the large, easy-to-read scale from impacts, dust, and contaminants
• Ergonomic Index Finger Handle: Designed for ultra-light force application in low-torque scenarios, minimizing fatigue and over-torquing risks
• Bi-Directional Versatility: Supports both tightening and loosening measurements, enhancing utility in inspection workflows
• Lightweight Construction: Alloy body with resin grip for reduced operator strain during prolonged quality checks
• Applications: Optimized for micro-fastener inspections in electronics, aerospace, medical devices, and general precision assembly; excels in torque auditing and compliance verification