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Built for maintenance jobs that require both fast access and secure fastener engagement, this Combination Wrench Set integrates two different working profiles into every wrench.
One side features an open jaw for convenient positioning, while the opposite ring end surrounds the fastener for controlled turning. This dual-function layout makes the set particularly useful for mechanics, maintenance technicians and industrial users who frequently switch between different working conditions.
The series is available as an 8-piece 6–22mm set or a broader 10-piece 6–27mm set.
The defining feature of this wrench series is its two-purpose working structure.
The open jaw can be positioned onto a fastener from the side, making it convenient for repeated tightening or loosening operations. On the opposite side, the ring end provides enclosed contact around the nut or bolt.
Having both profiles on the same wrench reduces the need to change tools frequently and gives technicians greater flexibility when moving between accessible and more demanding fastening positions.
Material selection is important for a wrench expected to handle repeated mechanical loads.
This series uses 45# carbon steel, which is formed through forging before subsequent processing. The forged structure provides the foundation required for a dependable hand tool intended for repair and maintenance work.
After forming, the wrench undergoes heat treatment to enhance its working characteristics and provide more consistent performance during repeated tightening operations.
The result is a practical carbon steel wrench suitable for professional workshops, general machinery servicing and commercial tool programs.
Instead of relying only on the thickness of the wrench body, the manufacturing process incorporates controlled heat treatment after forging.
This stage is used to improve hardness and mechanical stability so that the working ends can better withstand repeated contact with fasteners.
For distributors and professional tool buyers, this processing method provides a more suitable construction for products intended for regular rather than occasional household use.
The finished wrench receives a polished chrome plated surface.
Besides creating the familiar bright appearance expected from professional mechanic tools, chrome plating forms a protective exterior layer over the steel body.
Key benefits include:
Resistance to everyday corrosion
Smooth surfaces that are easier to wipe clean
Clean presentation for retail and professional tool ranges
Additional protection during handling and storage
Bright metallic appearance suitable for branded tool programs
This treatment also helps differentiate the product visually from black oxide, matte or other industrial wrench finishes.
Wenzhou City Shuntai Hardware Manufacturing Co., Ltd. has manufactured hand tools since 2000 and supports overseas buyers requiring factory-direct wrench supply.
For B2B projects, the product can be developed around different market requirements rather than being limited to a single standard retail presentation.
OEM options include:
Customer logo marking
Private-label programs
Customized packaging
Different set configurations
Bulk order production
Export-oriented supply
This allows importers and distributors to integrate the Metric Combination Wrench Set into their existing product lines under their own branding and packaging strategy.
Quality control is incorporated at different stages of production.
Incoming Material Check
Steel material is checked before entering the main production process.
Forging Check
Formed wrench bodies are inspected for basic shape and manufacturing consistency.
Heat Treatment Control
Processing conditions are managed to achieve suitable hardness and mechanical properties.
Working Size Inspection
Open-end and ring-end dimensions are checked against the required metric specifications.
Chrome Surface Check
The plated surface is examined for appearance, finish consistency and visible defects.
Set Verification
Individual wrench sizes are checked before being assembled into 8PCS or 10PCS configurations.
Pre-Shipment Check
Finished goods and packaging are inspected before export packing.
Each wrench combines an open end and a ring end. The product is supplied in either an 8-piece or 10-piece metric configuration.
The wrench bodies are manufactured from 45# carbon steel and undergo forging and heat treatment.
The 8PCS set covers 6–22mm, while the 10PCS set covers 6–27mm.
The open side provides convenient side access to fasteners, while the ring side offers enclosed engagement. This gives the user two working options within one wrench.
No. In addition to producing a bright polished appearance, the chrome plated surface helps protect the underlying steel against corrosion and makes routine cleaning easier.
Yes. OEM buyers can discuss custom logos, private labeling and customized packaging according to their purchasing requirements.
It is designed for professional and commercial applications including automotive servicing, mechanical maintenance, equipment assembly, workshops and industrial tool kits.
Choose the 8PCS 6–22mm set when compact coverage is preferred. The 10PCS 6–27mm set adds 24mm and 27mm sizes for buyers requiring a wider metric range.
