Wrenches

Image Part Number Description / PDF Quantity Rfq
21216

21216

Wiha

INSULATED RATCHET WRENCH 16MM

5

30433

30433

Wiha

COMBINATION INCH WRENCH 1/4"

84

30495

30495

Wiha

WRENCH INCH + METRIC 24 PC

7

30436

30436

Wiha

COMBINATION INCH WRENCH 7/16"

3

32971

32971

Wiha

WRENCH PIPE 2.1" 16.38"

0

30490

30490

Wiha

COMBINATION METRIC WRENCHES 7 PC

4

20136

20136

Wiha

WRENCH OPEN END 7/16" 4.61"

24

30488

30488

Wiha

COMBO WRENCH 23PC SET 6-30MM

4

21064

21064

Wiha

WRENCH BOX END 1"

0

20146

20146

Wiha

WRENCH OPEN END 15/16" 7.91"

0

30338

30338

Wiha

COMBINATION RATCHET WRENCH 15/16

5

20192

20192

Wiha

WRENCH SET OPEN END 5/16"-3/4"

5

21057

21057

Wiha

WRENCH BOX END 25/32"

0

20135

20135

Wiha

WRENCH OPEN END 3/8" 4.13"

0

30426

30426

Wiha

COMBINATION WRENCH 26MM

5

30322

30322

Wiha

COMBINATION RATCHET WRENCH 1/4"

2

30450

30450

Wiha

COMBINATION INCH WRENCH 1-1/4"

5

21027

21027

Wiha

WRENCH BOX END 27MM 11.26"

0

21060

21060

Wiha

WRENCH BOX END 7/8"

0

30314

30314

Wiha

COMBINATION RATCHET WRENCH 14MM

4

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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