Extra Long Mirror Polished Combination Wrench, Alloy Steel Forged, Double Nickel

This extra long mirror-polished combination wrench is precision forged from high-quality alloy steel, featuring fine polishing and lapping processes with double-layer nickel-chrome plating for excellent rust and corrosion resistance. The unique offset design follows ergonomic usage habits for comfortable and effortless operation. Full-body heat treatment delivers performance exceeding US ASME standards by over 30%, combining strength and toughness. The extended handle provides greater leverage and torque output, while the combination design — open end on one side and box end on the other — offers both the speed of an open end wrench and the high-torque slip-resistant advantage of a box end wrench. The full series of 22 sizes, from 6mm to 32mm, is suitable for automotive repair, mechanical assembly, plumbing installation, equipment maintenance, construction and other professional scenarios — the preferred tool for professional technicians and industrial maintenance.

Premium Alloy Steel Forging — Precision forged from high-quality alloy steel with high strength and toughness, durable and resistant to deformation and cracking

Double Nickel-Chrome Plating — Double-layer nickel-chrome plating process provides superior rust and corrosion resistance with a beautiful mirror-polished appearance

Fine Polishing & Lapping — Multiple fine processes of polishing and lapping create a smooth, refined surface with premium hand feel

Ergonomic Offset Design — Offset angle design avoids obstacles during operation, ideal for working in confined spaces

Full-Body Heat Treatment — Complete quenching and tempering ensures uniform and stable hardness, exceeding ASME standards by over 30%

Extra Long Design — Extended handle provides greater leverage for higher torque output, making large bolt assembly/disassembly more effortless and efficient

2-in-1 Combination Design — Open end on one side, box end on the other. One wrench serves dual purposes: open end for fast operation + box end for high torque slip resistance

22 Sizes Full Coverage — From 6mm to 32mm, 22 sizes available to fully cover bolt size requirements for various working scenarios

Material: High Quality Alloy Steel
Surface Finish: Double Nickel-Chrome Plated (Mirror Polish)
Standard: Exceeds ASME Standard by 30%
Type: Extra Long Combination Wrench (Open + Box End)

Automotive Repair & Maintenance — Engine, transmission and chassis bolt removal; extra long design reaches deep into engine bay tight spaces

Mechanical Assembly & Manufacturing — Machinery equipment assembly and precision installation/tightening of various standard hex bolts and nuts

Plumbing Installation & Repair — Plumbing fixtures, industrial pipelines, valve flange bolt tightening; offset design adapts to confined spaces

Equipment Maintenance — Production line equipment, motors, pumps, compressors and other daily inspection and maintenance in factories

Construction Engineering — Steel structure installation, scaffolding setup, formwork support fastening and other construction scenarios

Marine Repair & Maintenance — Engine room machinery maintenance; rust-resistant surface suitable for marine humid environments

Electrical Power Construction — Power transmission/distribution equipment, transformers, switchgear installation and maintenance, meeting power industry requirements

Mining Equipment Maintenance — Mining machinery equipment inspection and maintenance; high-strength material handles harsh working conditions

Aerospace Maintenance — Precision equipment maintenance; combination design meets different precision and torque requirements

Home DIY Repair — Furniture assembly, appliance repair, bicycle maintenance, plumbing repair and other household daily use

Direct Factory, Quality Controlled — Own production base with strict full-process control from raw material forging to finished packaging. Each wrench undergoes multiple quality inspection procedures to ensure consistent factory quality.

Factory Direct, Competitive Pricing — Factory direct supply eliminates middlemen for more competitive wholesale prices. Support for large-volume OEM/ODM custom orders with bulk discounts.

22 Sizes, Ample Stock — Full series of 22 sizes in stock, from 6mm to 32mm full coverage. Ready to ship upon order placement, meeting urgent restocking and bulk purchasing needs.

Exceeds US Standards, After-Sales Guarantee — Full-body heat treatment exceeds ASME standards by 30%. Stable and reliable product quality with comprehensive after-sales guarantee for non-human damage.

Professional Foreign Trade Team — Years of experience in tool export, supporting FOB/CIF/DDP and other trade terms, familiar with international logistics and customs clearance processes, with professional end-to-end support.

Flexible Packaging, Customization Supported — Various box and carton packaging specifications available. Support custom brand LOGO, exclusive packaging design and product combination sets to meet different customer needs.

R&D Capability — Professional R&D team continuously optimizes product processes and design. Can develop custom sizes and special feature products based on customer requirements.

Trusted by Global Customers — Products exported to Southeast Asia, Middle East, Europe, America, Africa and other countries and regions, widely recognized by overseas wholesalers, distributors and industrial clients.

Q1: What is a combination wrench? How is it different from single-end wrenches?
A: A combination wrench has an open end on one side and a box (ring) end on the other, combining two functions in one tool. The open end allows fast and convenient operation, while the box end distributes force evenly, resists slipping and handles higher torque. Compared to single-end wrenches, combination wrenches offer two tools in one for better value.

Q2: What material is this combination wrench made of? How is the hardness?
A: Precision forged from high-quality alloy steel with full-body heat treatment (quenching + tempering). Uniform and stable hardness delivers performance exceeding ASME standards by over 30%, with high strength, good toughness and long durability.

Q3: How many sizes are available? What are the minimum and maximum sizes?
A: The full series includes 22 sizes, from 6mm to 32mm, covering almost all commonly used hex bolt sizes in daily repair and industrial applications.

Q4: What’s the difference between extra long and regular combination wrenches?
A: The extra long handle provides greater leverage and torque output, especially suitable for large bolt assembly/disassembly and deep-reach fasteners, with significant labor-saving effect, also ideal for professional heavy-duty use scenarios.

Q5: What surface treatment is used? Will it rust?
A: Double-layer nickel-chrome plating with fine polishing and lapping provides strong rust and corrosion resistance. Under normal use and maintenance, it resists rusting well and maintains a mirror-like appearance.

Q6: What’s the purpose of the offset design?
A: The unique offset angle allows the wrench to avoid obstacles during operation, making it more suitable for use in narrow spaces. It also fits the natural hand-gripping habit for more comfortable and efficient operation.

Q7: Do you support custom LOGO and packaging? What’s the MOQ?
A: Yes, OEM/ODM customization is supported, including laser marking LOGO, custom packaging design, and product combination sets. MOQ depends on specific customization requirements, please contact us for details.

Q8: What about delivery time and shipping methods?
A: Regular sizes are in stock and ship within 3-7 working days after payment. Multiple shipping methods available: sea freight, air freight, express delivery. FOB/CIF/DDP trade terms can be arranged per customer request.