Wrenches

Image Part Number Description / PDF Quantity Rfq
30325

30325

Wiha

COMBINATION RATCHET WRENCH 3/8"

4

21336

21336

Wiha

INSULATED RATCHET WRENCH 13/16"

5

20145

20145

Wiha

WRENCH OPEN END 7/8" 7.56"

0

30441

30441

Wiha

COMBINATION INCH WRENCH 11/16"

5

30335

30335

Wiha

COMBINATION RATCHET WRENCH 3/4"

5

50056

50056

Wiha

WRENCH COMBINATION 15/16" 11.02"

0

50012

50012

Wiha

WRENCH COMBINATION 15MM 7.48"

0

21213

21213

Wiha

WRENCH BOX END 13MM 5.98"

5

30340

30340

Wiha

COMBO RACHET WRENCH 1-1/16

5

30331

30331

Wiha

COMBINATION RATCHET WRENCH 9/16"

5

32978

32978

Wiha

WRENCH PIPE 1.5" 12.20"

0

21040

21040

Wiha

WRENCH BOX END 1/4"

0

21056

21056

Wiha

WRENCH BOX END 3/4"

0

20194

20194

Wiha

WRENCH SET 1/4" - 1"

1

21219

21219

Wiha

WRENCH BOX END 19MM 8.27"

0

32970

32970

Wiha

WRENCH PIPE 1.5" 12.60"

0

21030

21030

Wiha

WRENCH BOX END 30MM 12.24"

0

30301

30301

Wiha

COMBINATION RATCHET WRENCH 20MM

5

21066

21066

Wiha

WRENCH BOX END 11/16"

0

30019

30019

Wiha

WRENCH COMBINATION 19MM

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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