RTD40I Rotary Slip Adjustable Torque Screwdriver, 1130 - 4520 cN.m

Tohnichi RTD40I is a high-precision rotary slip adjustable torque screwdriver 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 torque from 1130 to 4520 cN·m via a 1/4" hex drive, this manual tool features a rotary slip clutch for consistent results, lightweight construction for reduced fatigue, and an adjustable design for flexible settings. Ergonomic and durable with a resin grip, it supports bi-directional operation for versatile use in tightening and loosening tasks, promoting operator efficiency and reducing the risk of over-torquing in low-force applications.

Key Performance Specifications

• Torque Range: 1130 - 4520 cN·m (0.113 - 0.452 N·m / 11.5 - 46 kgf·cm / 10 - 40 lbf·in)
• Accuracy: ±6% of indicated value
• Drive Size: 1/4" Hex
• Clutch Type: Rotary slip, adjustable
• Loading Direction: Bi-directional (CW and CCW)

Physical and Environmental Specifications

• Overall Length: 180 mm (7.09")
• Weight: 0.25 kg (0.55 lbs)
• Handle Diameter: Approximately 20 mm (ergonomic 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

• Rotary Slip Clutch: Provides consistent torque delivery with slip mechanism to prevent over-tightening, ideal for repetitive small fastener applications
• Adjustable Setting: External dial for easy torque changes, ensuring accuracy without disassembly or specialized tools
• Lightweight Ergonomic Design: Resin grip and balanced body reduce hand fatigue during prolonged use in precision tasks
• Bi-Directional Versatility: Supports tightening and loosening measurements, enhancing utility in inspection and assembly workflows
• Durable Construction: High-strength materials for >10,000 cycle durability in demanding production environments
• Applications: Optimized for small fastener assembly in electronics, aerospace, medical devices, and general precision manufacturing; excels in torque-controlled workflows