Wrenches

Image Part Number Description / PDF Quantity Rfq
85269

85269

Xcelite

WR RAT X-BEAM FLEX COMB 19MM

0

86407

86407

Xcelite

WR RAT COMB 120XP 7MM

0

9312

9312

Xcelite

SET WR RAT COMB SAE 13PC TRAY

0

85444

85444

Xcelite

WR COMB INDEX 14MM

0

81923

81923

Xcelite

SET WR COMB MSTR FP MET/SAE 28

0

86421

86421

Xcelite

WR RAT COMB 120XP 21MM

0

85921

85921

Xcelite

WR RAT XL GEARBOX DBL BOX 21MM

0

81892

81892

Xcelite

WR ADJ CUSH GRIP 10

0

89106

89106

Xcelite

WR RAT FLX FLR NUT 16X18MM

0

85016

85016

Xcelite

WR RAT XL COMB 16MM

0

81762

81762

Xcelite

WR FP COMB 6PT 14MM

0

81915

81915

Xcelite

SET WR FLEX FLR NUT MET 3PC

0

85710

85710

Xcelite

WR RAT LCK FLEX XL 5/16"

0

81891

81891

Xcelite

WR ADJ CUSH GRIP 8

0

86212

86212

Xcelite

WR RAT COMB FLEX 120XP 12MM

0

86408

86408

Xcelite

WR RAT COMB 120XP 8MM

0

85513

85513

Xcelite

WR RAT OPEN END 13MM

0

81650

81650

Xcelite

WR COMB LNG PAT 1/4

0

85099R

85099R

Xcelite

SET WR RAT XL MET 16PC ROLL

0

85515

85515

Xcelite

WR RAT OPEN END 15MM

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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