| Image | Part Number | Description / PDF | Quantity | Rfq |
|---|---|---|---|---|
 |
Ampco Safety Tools |
WRENCH DBL OPEN 7X9MM |
0 |
|
 |
Ampco Safety Tools |
WRENCH DBL OPEN 36X41MM |
0 |
|
 |
Ampco Safety Tools |
WRENCH DBL OPEN 9/16X5/8" |
0 |
|
 |
Ampco Safety Tools |
WRENCH DBL OPEN 5/8X3/4" |
0 |
|
 |
Ampco Safety Tools |
WRENCH DBL OPEN 7X8MM |
0 |
|
 |
Ampco Safety Tools |
WRENCH DBL OPEN 16X18MM |
0 |
|
 |
Ampco Safety Tools |
WRENCH DBL OPEN 18X19MM |
0 |
|
 |
Ampco Safety Tools |
WRENCH DBL OPEN 9/16X3/4" |
0 |
|
 |
Ampco Safety Tools |
WRENCH DBL OPEN 46X50MM |
0 |
|
 |
Ampco Safety Tools |
WRENCH DBL OPEN 16X17MM |
0 |
|
 |
Ampco Safety Tools |
WRENCH DBL OPEN 8X9MM |
0 |
|
 |
Ampco Safety Tools |
WRENCH DBL OPEN 30X32MM |
0 |
|
 |
Ampco Safety Tools |
WRENCH DBL OPEN 7/16X1/2" |
0 |
|
 |
Ampco Safety Tools |
WRENCH DBL OPEN 22X24MM |
0 |
|
 |
Ampco Safety Tools |
WRENCH DBL OPEN 20X22MM |
0 |
|
 |
Ampco Safety Tools |
WRENCH DBL OPEN 5/16X11/32" |
0 |
|
 |
Ampco Safety Tools |
WRENCH DBL OPEN 22X27MM |
0 |
|
 |
Ampco Safety Tools |
WRENCH DBL OPEN 24X26MM |
0 |
|
 |
Ampco Safety Tools |
WRENCH DBL OPEN 3/16X1/4" |
0 |
|
 |
Ampco Safety Tools |
WRENCH DBL OPEN 25X28MM |
0 |
|
Wrenches are hand tools designed to provide grip and torque for tightening or loosening nuts, bolts, and other fasteners. As fundamental components in mechanical engineering, they enable precise control of clamping forces in assembly, maintenance, and repair operations. Their importance spans across industries requiring reliable joint integrity, from automotive manufacturing to pipeline maintenance.
| Type | Functional Characteristics | Application Examples |
|---|---|---|
| Open-End Wrench | Fixed jaw size with angled for quick engagement | Automotive engine assembly |
| Combination Wrench | Dual-ended (open+ring) with same size specifications | General mechanical repairs |
| Adjustable Wrench | Variable jaw width via threaded mechanism | Plumbing pipe fittings |
| Torque Wrench | Precise torque measurement with audible/visual feedback | Aerospace component installation |
| Socket Wrench | Interchangeable socket heads with ratchet mechanism | Industrial machinery maintenance |
| Allen Key | Hexagonal cross-section for socket head screws | Furniture assembly |
| Pipe Wrench | Self-tightening jaws with serrated teeth | Steel pipe installation |
Typical wrench construction includes: - Handle with ergonomic knurling/textured grip - Fixed/adjustable jaw assembly with hardened alloy steel - Ratchet mechanism (for socket wrenches) with pawl-and-roller system - Vernier scale (adjustable types) or torque scale (torque wrenches) - Surface treatment: Chrome vanadium finish or black oxide coating - Overload protection clutch (advanced torque models)
| Parameter | Description | Importance |
|---|---|---|
| Material Hardness | 50-60 HRC (Rockwell C scale) | Determines wear resistance and torque capacity |
| Torque Range | 0-1500 N m (manual) / 0-5000 N m (hydraulic) | Defines application suitability |
| Size Range | 4-60mm (metric) / 1/8"-2" (imperial) | Compatibility with fastener dimensions |
| Accuracy Class | 4% (industrial) / 1% (precision) | Measurement reliability in critical applications |
| Surface Protection | Salt spray resistance >500h | Corrosion resistance in harsh environments |
Key industries include:
- Automotive manufacturing (engine assembly lines)
- Aerospace maintenance (torque-critical fastening)
- Construction (structural steel connections)
- Pipeline systems (pressure-rated joint assembly)
- Electronics (precision screw driving)
Case Study: Automotive Wheel Installation - Dual-direction torque wrenches ensure 120N m 5% clamping force consistency
| Manufacturer | Representative Product | Key Innovation |
|---|---|---|
| Snap-on | Pro Torque Click Wrench | Micrometer adjustment with 1N m increments |
| Craftsman | VDE Insulated Wrench Set | 1000V protection for electrical work |
| Bosch | ECOtorque Adjustable Wrench | Ergonomic 3D grip design |
| Stahlwille | No.7602 Combination Wrench | Double-layer chrome plating |
Consider: 1. Matching size range to fastener specifications 2. Required torque accuracy class 3. Material compatibility (e.g. non-sparking alloys for explosive environments) 4. Ergonomic factors (weight <1.5kg for prolonged use) 5. Calibration certification requirements (ISO 6789 compliance) 6. Special features (digital readout, Bluetooth connectivity)
Emerging patterns include: - Integration of IoT-enabled torque sensors - Adoption of carbon fiber-reinforced polymer handles - Development of multi-axis smart wrenches - Standardization of 1/2" drive systems for heavy-duty applications - Growth in cordless electric wrench market (CAGR 7.2% 2023-2028)