Wrenches

Image Part Number Description / PDF Quantity Rfq
30342

30342

Wiha

COMBINATION RATCHET WRENCH 1-3/1

5

21321

21321

Wiha

INSULATED RATCHET WRENCH 5/16"

5

30320

30320

Wiha

COMBINATION RATCHET WRENCH 27MM

5

30316

30316

Wiha

COMBINATION RATCHET WRENCH 16MM

5

50017

50017

Wiha

WRENCH COMBINATION 20MM 9.45"

0

76290

76290

Wiha

WRENCH SET ADJUSTABLE

8

30411

30411

Wiha

COMBINATION WRENCH 11MM

101

30452

30452

Wiha

COMBINATION INCH WRENCH 1-1/2"

5

30333

30333

Wiha

COMBINATION RATCHET WRENCH 5/8"

5

30308

30308

Wiha

COMBINATION RATCHET WRENCH 8MM

1

30444

30444

Wiha

COMBINATION INCH WRENCH 13/16"

5

21335

21335

Wiha

WRENCH BOX END 3/4" 8.23"

0

30407

30407

Wiha

COMBINATION WRENCH 7MM

86

21319

21319

Wiha

INSULATED RATCHET WRENCH 1/4"

5

30389

30389

Wiha

RATCHET WRENCH 20PC SET

4

30393

30393

Wiha

COMBO INCH RATCHET WRENCHES 7 PC

5

21334

21334

Wiha

INSULATED RATCHET WRENCH 11/16"

5

30429

30429

Wiha

COMBINATION WRENCH 29MM

3

32996

32996

Wiha

WRENCH SET PIPE 1.5"-2.6"

0

30448

30448

Wiha

COMBINATION INCH WRENCH 1-1/16"

5

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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