Wrenches

Image Part Number Description / PDF Quantity Rfq
W-631

W-631

Ampco Safety Tools

WRENCH COMBINATION 9/16"

1

W-70

W-70

Ampco Safety Tools

WRENCH ADJUSTABLE 6" OAL

1

85610

85610

Xcelite

WR RAT LCK FLEX XL 10MM

0

9416

9416

Xcelite

SET WR RAT COMB MET 16PC TRAY

0

2297299

2297299

GEDORE Tools, Inc.

COMBINATION RATCHET SPANNER, REV

4

30315

30315

Wiha

COMBINATION RATCHET WRENCH 15MM

5

30324

30324

Wiha

COMBINATION RATCHET WRENCH 11/32

2

2297175

2297175

GEDORE Tools, Inc.

COMBINATION RATCHET SPANNER 19 M

4

81907

81907

Xcelite

SET WR FLR NUT SAE 6PC

0

30435

30435

Wiha

COMBINATION INCH WRENCH 3/8"

4

CTW-71638

CTW-71638

OK Industries (Jonard Tools)

F CONNECTOR TORQUE WRENCH KIT, 3

3

114991947

114991947

Seeed

MINI CROSS SLEEVE WRENCH FOR M2/

14

85920

85920

Xcelite

WR RAT XL GEARBX DBL BX 20MM

0

30326

30326

Wiha

COMBINATION RATCHET WRENCH 29MM

5

0828

0828

Ampco Safety Tools

WRENCH DBL BOX ST 32X36MM

1

21329

21329

Wiha

WRENCH BOX END 1/2" 6.06"

0

TWAF-91620

TWAF-91620

OK Industries (Jonard Tools)

WRENCH TORQUE 9/16" 6.5"

2

IW-72

IW-72

Ampco Safety Tools

INSULATED WRENCH ADJUSTABLE10"

1

WO-1/4X5/16

WO-1/4X5/16

Ampco Safety Tools

WRENCH DBL OPEN 1/4X5/16"

1

WO-1-5/16X1-1/2

WO-1-5/16X1-1/2

Ampco Safety Tools

WRENCH DBL OPEN 1-5/16X1-1/2"

1

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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