Wrenches

Image Part Number Description / PDF Quantity Rfq
WO-1/2X9/16

WO-1/2X9/16

Ampco Safety Tools

WRENCH DBL OPEN 1/2X9/16"

1

W-3190

W-3190

Ampco Safety Tools

WRENCH DBL BOX 13/16X7/8"

1

85352

85352

Xcelite

WR RAT REV S 3/4X7/8

0

21190-12

21190-12

Aven

WRENCH ADJUSTABLE 1-1/2" 12"

2

86218

86218

Xcelite

WR RAT COMB FLEX 120XP 18MM

0

50056

50056

Wiha

WRENCH COMBINATION 15/16" 11.02"

0

50012

50012

Wiha

WRENCH COMBINATION 15MM 7.48"

0

7097270

7097270

GEDORE Tools, Inc.

TORQUE WRENCH TORCOFIX Z 16, 20-

4

AW-8

AW-8

OK Industries (Jonard Tools)

WRENCH ADJUSTABLE 1-1/8" 8"

4

JT-WA-03010

JT-WA-03010

Jameson LLC

12" INSULATED ADJ WRENCH

0

1055419-1

1055419-1

TE Connectivity AMP Connectors

WRENCH OPEN END 5/16" 6.97"

43

68511

68511

Klein Tools

WRENCH COMBINATION 11MM 6.5"

5

IWSB-7/16

IWSB-7/16

Ampco Safety Tools

INSULATED WRENCH BOX END 7/16"

1

85819

85819

Xcelite

WR RAT COMB XL X-BEAM 19MM

0

CCW4

CCW4

Xcelite

7/16" COMBINATION WRENCH,SAE,FL

75

81918

81918

Xcelite

SET WR COMB LP 15PC

0

CTW-716312

CTW-716312

OK Industries (Jonard Tools)

F CONNECTOR TORQUE WRENCH KIT, 3

3

21213

21213

Wiha

WRENCH BOX END 13MM 5.98"

5

30340

30340

Wiha

COMBO RACHET WRENCH 1-1/16

5

85987

85987

Xcelite

SET GEARBOX ADD-ON MET 5PC

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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