Head-Interchangeable Torque Wrench & Spanner Set, 40-210 Nm Range

Brief Overview

This head-interchangeable torque wrench system combines precision fastening with practical versatility. The 1/2-inch drive design accommodates ten chrome-plated interchangeable open-end wrench heads (flat double-sided pieces), making it ideal for accessing fasteners in confined spaces where traditional ratchet sockets cannot reach. The click-type torque limiting mechanism delivers immediate tactile and audible feedback when the set torque value is reached, ensuring repeatable accuracy across hundreds of tightening cycles. For shops managing both standard socket-driven applications and precision work requiring flat-tip access, this system covers a critical middle ground. Complement this set with a dedicated fixed-range torque wrench for high-volume production lines, or explore a reversible needle-style torque wrench for ultra-precision applications.

Key Features

• 10 Interchangeable Open-End Heads: 13, 14, 15, 17, 19, 22, 24, 27, 30 mm for side-approach fastening
• 40–210 Nm Torque Range: Covers light assembly through heavy industrial fastening
• 1 Nm Graduation Resolution: Precise torque setting in single-Newton increments
• ISO 6789 Certified: ±3% accuracy guarantee over the entire range
• Click-Type Torque Limiting Mechanism: Audible and tactile "click" confirmation at target torque
• 1/2-Inch Square Drive: Compatible with standard ratchet head and adapter
• Robust Plastic Carrying Case: Individual slots for all components; includes two latching catches
• High-Quality Compression Spring: Maintains calibration accuracy through extended service life
• Calibration Certificate: Included with every set; supports compliance verification

Technical Specifications

Specification	Value
Torque Range	40–210 Nm
Graduation Resolution	1 Nm
Accuracy	±3% (ISO 6789)
Drive Size	1/2 inch
Interchangeable Head Count	10
Head Sizes (Flat Tips)	13, 14, 15, 17, 19, 22, 24, 27, 30 mm
Handle Material	Black rubberized grip
Body Material	Robust plastic construction with knurled adjustment collar
Feedback Type	Click-type with audible and tactile confirmation
Storage	Blue molded plastic carrying case with formed slots
Included Accessories	Ratchet head, square adapter, calibration certificate

Business Advantages for Distributors

• Dual-Market Appeal: Attracts both general mechanics (flat-tip access problem-solving) and precision technicians (ISO 6789 certification)
• Complete System in One SKU: Reduces inventory complexity; one reference number covers multiple application scenarios
• Compliance-Ready: Calibration certificate simplifies customer audits and quality documentation
• High Repeat Purchase Potential: Flat-tip heads wear and break in field use; shops will reorder replacement heads separately
• Price Point Positioning: Sits between budget click-wrenches and high-end digital systems; strong margin opportunity
• Portable Professional Image: Sturdy blue case elevates perceived value; appropriate for customer site visits and demonstrations

Why This Set Matters

The interchangeable flat-tip design solves a real problem: many fasteners (particularly in automotive, industrial assembly, and machinery maintenance) are inaccessible from directly above. Standard socket sets cannot reach these applications. This wrench bridges that gap without requiring technicians to carry multiple single-purpose tools. The ±3% ISO 6789 accuracy ensures that critical fastening operations—fuel injectors, brake components, bearing preload adjustments—remain consistent across your customer's shop floor.

The click-type mechanism is reliable and does not require visual reference; in low-light conditions or confined spaces, the operator knows immediately when the target torque is reached. The high-quality compression spring and robust design mean this tool maintains accuracy for years of daily use, making it a cost-effective core tool investment for professional shops.

Call to Value

Stock this set as a premium offering in your torque wrench portfolio. It fills a specific niche that generic socket-based torque wrenches cannot address, supports compliance documentation with its included calibration certificate, and generates repeat revenue through replacement head orders. For resellers targeting professional mechanics, automotive service centers, and industrial maintenance teams, this system demonstrates technical depth and problem-solving capability.