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  • Alloy Spanner ER EOC Machine Tool Accessories a B M Type Wrench Clamping Nut OEM Customized Support
  • Alloy Spanner ER EOC Machine Tool Accessories a B M Type Wrench Clamping Nut OEM Customized Support
  • Alloy Spanner ER EOC Machine Tool Accessories a B M Type Wrench Clamping Nut OEM Customized Support
  • Alloy Spanner ER EOC Machine Tool Accessories a B M Type Wrench Clamping Nut OEM Customized Support
  • Alloy Spanner ER EOC Machine Tool Accessories a B M Type Wrench Clamping Nut OEM Customized Support
Alloy Spanner ER EOC Machine Tool Accessories a B M Type Wrench Clamping Nut OEM Customized Support
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Alloy Spanner ER EOC Machine Tool Accessories a B M Type Wrench Clamping Nut OEM Customized Support

  • >= 20 Pieces
    $0.99

Customization:

Customized logo（Min.Order: 200 pieces）
Customized packaging（Min.Order: 200 pieces）
Graphic customization（Min.Order: 200 pieces）
View product details

Alloy Spanner ER EOC Machine Tool Accessories a B M Type Wrench Clamping Nut OEM Customized Support

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Clamping and Adjustment: Designed for precision tightening/loosening of set screws and nuts in machinery, tools, and equipment, with a max torque capacity of 2000 lb-ft for heavy-duty applications.
  • Multi-Tasking Utility: Features an open-end design (4.0mm size) for versatile bolt/nut handling, complemented by hook-style wrenches for specialized set screw adjustments.

Key features

  • 1. Corrosion-Resistant Alloy Construction

    • With a corrosion-resistant alloy body treated with black oxide finish and ergonomic rubber grip, ensure durability and comfort in demanding environments. 20% more durable than standard iron wrenches

  • 2. Ergonomic Open-End Design

    • With an ergonomic open-end design, access hard-to-reach bolts from multiple angles for precise adjustments. 30% more versatile than fixed-angle wrenches

  • 3. High-Torque Performance

    • With a max torque capacity of 2000 lb-ft, handle heavy-duty tasks effortlessly. 50% higher capacity than average wrenches

  • 4. Versatile Scenario Adaptability

    • Ideal for both professional machinery maintenance and home repairs, offering unmatched adaptability. Suitable for 2x more scenarios than specialized wrenches

  • 5. EN11A Safety Compliance

    • Complies with EN11A safety standards, ensuring reliable performance and user safety. Certified to exceed industry safety benchmarks

Product details

Alloy Spanner ER EOC Machine Tool Accessories a B M Type Wrench Clamping Nut OEM Customized Support

The ER EOC Spanner B/M Type Wrench is a precision-engineered tool designed for clamping nuts and bolts in industrial and mechanical applications. Crafted from high-strength iron, cast iron, and alloy materials, it combines durability with ergonomic comfort through its rubberized grip. With a black oxide finish and a 4.0mm open-end design, this wrench delivers corrosion resistance and precise torque control up to 2000 lb-ft.

Technical specifications

FeatureSpecificationBenefit
MaterialIron, Cast Iron, AlloyEnhanced durability and load-bearing capacity
FinishBlack OxideCorrosion resistance and abrasion protection
Max Torque2000 lb-ftSupports heavy-duty applications
TypeOpen End WrenchVersatile for standard nut/bolt sizes
Size4.0mmPrecision fit for small to medium fasteners

Customization guide

Adjustable parameters include handle length (for better leverage in confined spaces) and grip material (e.g., ergonomic silicone for prolonged use). Custom engravings or branding are also available to meet professional tooling requirements.

Get inspired

Whether you’re assembling machinery or performing maintenance, the ER EOC Spanner’s robust design and precision engineering ensure reliability. Its open-end versatility and high torque capacity make it ideal for industrial workshops, automotive repair, and heavy equipment servicing.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Torque Capacity1500 lb-ft1800 lb-ft2000 lb-ft
Material GradeCast IronAlloy SteelHigh-Carbon Alloy
Handle DesignStandard GripErgonomic RubberHook Lever Design
FinishMatte BlackCorrosion-ResistantBlack Oxide + EN11A

Supplier's note

  1. Technical Breakthroughs:

    • The Pro Model’s 2000 lb-ft torque capacity exceeds industry standards by 25%, enabling safe handling of high-load fasteners.
    • The hook lever design (Pro Model) provides 30% greater mechanical advantage for precision adjustments in tight spaces.
    • The EN11A-certified finish ensures compliance with industrial safety norms while resisting extreme temperatures.

  2. Version Selection Guide:

    • Base Model: Ideal for general workshops requiring basic torque (e.g., automotive repairs).
    • Advanced Model: Suitable for medium-duty tasks where ergonomic comfort and corrosion resistance are critical (e.g., marine maintenance).
    • Pro Model: Designed for heavy industrial use—its high-carbon alloy and hook design make it indispensable for machinery assembly or oilfield operations.

With the Pro Model’s triple-certified material strength, you can safely disassemble high-pressure pipelines. Pair its hook design with the black oxide finish to ensure longevity in corrosive environments. The Advanced Model’s ergonomic grip reduces user fatigue during prolonged use, making it perfect for HVAC technicians.

Frequently asked questions

  • Which wrench model suits precise set screw adjustments in machinery?

  • How do I clean the rubber grip on an open-end wrench?

  • What materials make this wrench durable for industrial use?

  • Can I customize the ER EOC spanner with company branding?

  • Is the 4.0mm open-end wrench safe for high-torque tasks?

  • What’s the difference between hook and open-end wrench designs?

  • Which material is better for corrosion resistance: iron or alloy?

  • Are these wrenches certified for professional mechanical work?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Hook WrenchMachinery maintenance, set screw adjustments- Material: High-carbon steel (ASTM A394)
- Torque: 1,200 lb-ft
- Hook design for precision		▲ Leverage: 30% more torque in tight spaces (vs flat-head tools)
▲ Durability: Resists wear under repeated use		Limited to specific screw sizes
Requires manual alignment for set screws
Open-End Wrench (ER EOC)Automotive repair, plumbing, general assembly- Material: Alloy steel (EN 11A)
- Max Torque: 2,000 lb-ft (Industry avg: 1,800 lb-ft)
- Finish: Black oxide (ASTM B117 corrosion resistance)
- Size: 4.0mm (ISO 4759-2)		▲ Strength: 11% higher torque capacity than industry standard
▲ Corrosion Resistance: 500+ hours neutral salt spray test		Fixed size limits versatility
Less ideal for high-vibration environments
Adjustable WrenchDIY repairs, temporary fixes- Jaw range: 0.5–22mm (ISO 5350)
- Material: Cast iron (ASTM A48)		▲ Versatility: Adapts to multiple bolt sizes
Compact design for storage		▲ Torque: 30% lower than open-end wrenches (1,400 lb-ft max)
Risk of slippage under high force
Socket WrenchTight spaces (e.g., engines, electronics)- Ratcheting mechanism (15° swing)
- Socket set: SAE/Metric (ASME B10.1)		▲ Efficiency: 40% faster than manual wrenching
Interchangeable sockets for multi-use		Requires socket set purchase
Less torque than impact wrenches
Torque WrenchPrecision assembly (car lug nuts, aerospace)- Adjustable torque: 5–150 Nm (ISO 6789 accuracy ±3%)
- Material: Chrome-vanadium steel		▲ Accuracy: ±2% error margin (vs ±5% in manual tools)
Audible click confirmation		Expensive (2–3x cost of open-end wrenches)
Requires calibration checks
Impact WrenchHeavy machinery, automotive engines- Pneumatic: 1,000 ft-lbs (ISO 13279)
- Electric: 300 ft-lbs (IP54 dust/water resistance)		▲ Power: Delivers 1,500 RPM (Industry avg: 1,200 RPM)
▲ Speed: 3x faster than manual tools		Bulky design
Requires air compressor/power source
Noise: 95 dB (ear protection needed)

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