Wrenches

Image Part Number Description / PDF Quantity Rfq
40055

40055

Wiha

WRENCH COMBINATION 7/8" 10.24"

0

47506

47506

Wiha

WRENCH BOX END 14MMX15MM 9.37"

0

40013

40013

Wiha

WRENCH COMBINATION 16MM 7.87"

0

47529

47529

Wiha

WRENCH BOX END 13/16X7/8" 12.60"

0

50059

50059

Wiha

WRENCH COMBINATION 1-1/8" 12.99"

0

47502

47502

Wiha

WRENCH BOX END 6MMX7MM 6.50"

0

40048

40048

Wiha

WRENCH COMBINATION 9/16"7.09"

0

47536

47536

Wiha

WRENCH BOX END 1-1/4"X1-3/8"

0

47509

47509

Wiha

WRENCH BOX END 20MMX22MM 12.60"

0

47537

47537

Wiha

WRENCH BOX END 1-5/16"X1-1/2"

0

40044

40044

Wiha

WRENCH COMBINATION 5/16" 4.72"

0

47532

47532

Wiha

WRENCH BOX END 1"X1-1/8" 13.62"

0

40050

40050

Wiha

WRENCH COMBINATION 5/8" 7.87"

0

40030

40030

Wiha

WRENCH COMBINATION 27MM 12.20"

0

40040

40040

Wiha

WRENCH COMBINATION 50MM 21.26"

0

Wrenches

1. Overview

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.

2. Major Types and Functional Classification

TypeFunctional CharacteristicsApplication Examples
Open-End WrenchFixed jaw size with angled for quick engagementAutomotive engine assembly
Combination WrenchDual-ended (open+ring) with same size specificationsGeneral mechanical repairs
Adjustable WrenchVariable jaw width via threaded mechanismPlumbing pipe fittings
Torque WrenchPrecise torque measurement with audible/visual feedbackAerospace component installation
Socket WrenchInterchangeable socket heads with ratchet mechanismIndustrial machinery maintenance
Allen KeyHexagonal cross-section for socket head screwsFurniture assembly
Pipe WrenchSelf-tightening jaws with serrated teethSteel pipe installation

3. Structure and Components

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)

4. Key Technical Specifications

ParameterDescriptionImportance
Material Hardness50-60 HRC (Rockwell C scale)Determines wear resistance and torque capacity
Torque Range0-1500 N m (manual) / 0-5000 N m (hydraulic)Defines application suitability
Size Range4-60mm (metric) / 1/8"-2" (imperial)Compatibility with fastener dimensions
Accuracy Class 4% (industrial) / 1% (precision)Measurement reliability in critical applications
Surface ProtectionSalt spray resistance >500hCorrosion resistance in harsh environments

5. Application Fields

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

6. Leading Manufacturers and Products

ManufacturerRepresentative ProductKey Innovation
Snap-onPro Torque Click WrenchMicrometer adjustment with 1N m increments
CraftsmanVDE Insulated Wrench Set1000V protection for electrical work
BoschECOtorque Adjustable WrenchErgonomic 3D grip design
StahlwilleNo.7602 Combination WrenchDouble-layer chrome plating

7. Selection Recommendations

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)

Industry Development Trends

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)

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