Wrenches

Image Part Number Description / PDF Quantity Rfq
85199

85199

Xcelite

SET WR RAT XL SAE 13PC

0

9418

9418

Xcelite

SET WR RAT COMB SAE & MET 10PC

0

9260

9260

Xcelite

SET WR RAT DBL BX MET 6PC

0

81761

81761

Xcelite

WR FP COMB 6PT 13MM

0

81827

81827

Xcelite

WR COMB LNG 12PT 2-1/4 SATIN

0

81816

81816

Xcelite

WR COMB LNG 12PT 1-3/8 FULL POLI

0

89149

89149

Xcelite

WR RAT CRFT 3/8DR 19MM

0

85911

85911

Xcelite

WR RAT XL GEARBOX DBL BOX 11MM

0

85599

85599

Xcelite

SET WR RAT OPEN END DUAL SAE 8PC

0

86437

86437

Xcelite

WR RAT COMB 120XP 1/2"

0

86126

86126

Xcelite

SET WR RAT XL DBL BOX FLEX 120XP

0

86446

86446

Xcelite

WR RAT COMB 120XP 1-1/16"

0

85278

85278

Xcelite

WR RAT X-BEAM FLEX COMB 9/16

0

9556

9556

Xcelite

WR RAT COMB STBY FLEX 15MM

0

85099

85099

Xcelite

SET WR RAT XL MET 16PC

0

81818

81818

Xcelite

WR COMB LNG 12PT 1-5/8 SATIN

0

81822

81822

Xcelite

WR COMB LNG 12PT 1-7/8 SATIN

0

89147

89147

Xcelite

WR RAT CRFT 3/8DR 17MM

0

85460

85460

Xcelite

WR COMB INDEX 5/8

0

81900

81900

Xcelite

SET WR COMB SAE/MET 24PC

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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