Product Description
Our Insulated Box-End Wrench is a professional-grade tool designed specifically for the electrical power industry and high-voltage work environments. Forged from high-quality alloy steel with full heat treatment for high strength and excellent toughness. Precision-machined 12-point box jaw with multi-point contact for accurate torque transmission, reducing slipping and nut damage. Handle is injection-molded from high-voltage resistant insulating material for reliable insulation performance, ensuring safety during high-voltage work. Available in 11 sizes from 8mm to 32mm to meet various nut and bolt tightening/loosening needs — essential for electricians, power construction, and industrial maintenance.
Key Features
| English Feature | |
|---|---|
| 1 | High Voltage Insulated Handle: One-piece injection-molded insulation material — reliable insulation for work safety |
| 2 | Alloy Steel Forged: Premium alloy steel one-piece forging — high strength, excellent toughness, long durability |
| 3 | Full Heat Treatment: Full heat treatment process — uniform hardness, extended service life |
| 4 | 12-Point Box Jaw: 12-point multi-contact design — accurate torque transmission, less slipping and nut damage |
| 5 | Wide Size Range: 11 sizes from 8mm-32mm — meets various work requirements |
| 6 | Ergonomic Design: Comfortable grip with anti-slip design — reduces fatigue during prolonged use |
| 7 | Single-End Box Design: Single-end box structure with even force distribution — ideal for high-torque applications |
| 8 | Industrial Grade Quality: Strict quality testing, compliant with international electrical safety standards |
Specifications
| Item No. | Size | Box Qty | Carton Qty | Unit Weight | Gross Weight |
|---|---|---|---|---|---|
| W71508 | 8mm | 6pcs | 60pcs | 0.040kg | 3.40kg |
| W71510 | 10mm | 6pcs | 60pcs | 0.050kg | 4.00kg |
| W71512 | 12mm | 6pcs | 60pcs | 0.065kg | 4.90kg |
| W71514 | 14mm | 6pcs | 60pcs | 0.085kg | 6.10kg |
| W71517 | 17mm | 6pcs | 48pcs | 0.095kg | 5.56kg |
| W71519 | 19mm | 6pcs | 48pcs | 0.100kg | 5.80kg |
| W71522 | 22mm | 6pcs | 48pcs | 0.160kg | 8.68kg |
| W71524 | 24mm | 6pcs | 48pcs | 0.210kg | 11.08kg |
| W71527 | 27mm | 4pcs | 40pcs | 0.255kg | 11.20kg |
| W71530 | 30mm | 4pcs | 40pcs | 0.355kg | 15.20kg |
| W71532 | 32mm | 4pcs | 40pcs | 0.405kg | 17.20kg |
- High voltage resistant insulated handle
- Alloy steel forged, full heat treatment
- 12-point box jaw, precision machined
- 11 sizes from 8mm to 32mm
- Ergonomic design, comfortable grip
- Small sizes (8-24mm): 6pcs/box
- Large sizes (27-32mm): 4pcs/box
- Outer Packing: Standard export carton
- Custom packaging available (MOQ applies)
Applications
- Power system inspection and maintenance
- High-voltage electrical work
- Substation and distribution room maintenance
- Industrial electrical equipment installation and repair
- Heavy machinery assembly and maintenance
- Plumbing installation and repair
- Automotive repair and maintenance
- Petrochemical and chemical industry maintenance
Why Choose Us
Direct Factory, Quality Assured
Factory Direct Pricing, Cost Advantage
Professional Team, Technical Support
Fast Shipping, Global Delivery
Complete Certifications & Qualifications
Attentive Service, Worry-Free After-Sales
FAQ
Q1: What is the insulation rating and what certifications does this box wrench have?
A: The handle of this product is one-piece injection-molded from high-voltage resistant insulating material with excellent high-voltage insulation performance. Suitable for high-voltage electrical work environments, effectively protecting operator safety. Please contact our sales team for detailed technical specifications and certification information.
Q2: What sizes are available? Can I buy individual pieces or do I have to buy a set?
A: This product is available in 11 sizes: 8mm, 10mm, 12mm, 14mm, 17mm, 19mm, 22mm, 24mm, 27mm, 30mm, 32mm. You can purchase individual pieces based on your needs or buy a complete set. Please contact our sales representatives for details.
Q3: What is the difference between box-end wrenches and open-end wrenches? How do I choose?
A: Box-end wrenches use a 12-point (or 6-point) ring jaw with multi-point contact with the nut, capable of handling higher torque, less likely to slip or damage nut surfaces — ideal for high-torque and precision work. Open-end wrenches are more flexible to use, ideal for quick assembly/disassembly and confined spaces. Generally, using both in combination provides the highest efficiency.
Q4: What material is the wrench made of? How hard and durable is it?
A: This product is forged from premium alloy steel with full heat treatment process, providing uniform hardness, high strength, and excellent toughness. The precision-machined 12-point box jaw distributes force across multiple contact points for accurate torque transmission — built to last.
