S-Type Box-End Wrench | Curved Double Box Spanner | Cr-V Steel Offset Ring Wrench | Special Angle Wrench for Auto Repair & Installation

Product Description

This S-type box-end wrench is forged from premium chrome-vanadium steel, offering high hardness, good toughness, and dependable long-term durability. Its unique S-shaped curved handle provides additional clearance around pipes, brackets, vehicle components, and surrounding structures, allowing users to work effectively at special angles, in recessed areas, and in confined spaces where standard straight wrenches cannot reach.

Both ends feature box-end profiles, allowing one wrench to fit two different metric sizes of hex nuts and bolts. The precisely machined ring profiles provide balanced force distribution and stable engagement, helping reduce slipping and damage to fastener corners. The wrench is finished with mirror chrome plating for a bright, professional appearance, good rust resistance, corrosion protection, and easy cleaning.

Available in sizes from 8×9mm to 18×19mm, this S-type wrench is ideal for automotive repair, machinery maintenance, furniture installation, plumbing work, and industrial servicing.

Features

  • Premium Forged Cr-V Steel: Made from high-quality chrome-vanadium steel for high hardness, good toughness, wear resistance, and long service life.
  • Unique S-Type Curved Handle: Provides extra clearance around obstacles and is ideal for special angles and limited-access applications.
  • Double Box-End Design: Two different sizes in one wrench improve versatility and reduce tool changes.
  • Uniform Precision Ring Profiles: Balanced force transfer and stable fastener engagement help reduce slipping and damage to nut or bolt corners.
  • Mirror Chrome-Plated Finish: Bright, professional surface with good rust resistance, corrosion protection, and easy maintenance.
  • Designed for Complex Work Areas: Suitable for automotive repair, plumbing, home installation, machinery interiors, and obstructed spaces.

Specifications

Item No. Size Overall Length (L) Inner Box Qty. Carton Qty. Unit Weight Gross Weight
W12422 8×9 mm 115 mm 12 pcs 120 pcs 0.040 kg 5.80 kg
W12423 10×11 mm 127 mm 12 pcs 120 pcs 0.067 kg 9.04 kg
W12424 12×13 mm 141 mm 12 pcs 120 pcs 0.083 kg 10.96 kg
W12425 14×15 mm 172 mm 6 pcs 90 pcs 0.135 kg 13.15 kg
W12426 16×17 mm 200 mm 6 pcs 90 pcs 0.158 kg 15.22 kg
W12427 18×19 mm 210 mm 6 pcs 90 pcs 0.186 kg 17.74 kg

Applications

This S-type box-end wrench is suitable for:

  • Automotive engine bay, chassis, suspension, and brake system repair
  • Automotive air-conditioning lines, exhaust systems, and surrounding component maintenance
  • Motorcycle, electric vehicle, and bicycle servicing
  • Furniture installation, cabinet assembly, and household hardware repair
  • Plumbing, pipes, valves, angle valves, and sanitary installation
  • Machinery, industrial production lines, and automation equipment maintenance
  • Construction equipment, agricultural machinery, and mining equipment repair
  • Fastening tasks in recessed, obstructed, angled, or tight spaces

Why Choose Us

Premium Chrome-Vanadium Steel

High-quality Cr-V steel ensures an excellent balance of hardness, toughness, wear resistance, and long-term durability.

S-Type Design for Better Access

The unique S-shaped body provides extra clearance around pipes, brackets, and machine components, making difficult fasteners easier to access.

Precision Box-End Engagement

Accurately machined ring ends offer a stable fit, balanced torque transfer, and reduced risk of slipping or rounding fasteners.

Mirror Chrome Rust Protection

Mirror chrome plating enhances appearance while improving rust resistance, corrosion protection, and ease of cleaning.

Practical Metric Size Range

Available in popular size combinations from 8×9mm to 18×19mm for automotive, plumbing, installation, and industrial maintenance applications.

Flexible OEM/ODM Support

Custom logos, size assortments, surface finishes, packaging, and tool set configurations are available for distributors, brands, and engineering buyers.

FAQ

Q1: What is the difference between an S-type box-end wrench and a standard straight box wrench?
A1: An S-type box wrench has a curved handle that provides extra clearance around pipes, brackets, and other obstacles. A standard box wrench usually has a straight handle and requires a more direct access path.

Q2: Where is the S-type design most useful?
A2: It is especially useful in automotive engine bays, chassis work, air-conditioning lines, plumbing installations, furniture assembly, and machinery interiors where space is limited or obstacles block direct access.

Q3: What material is this wrench made from?
A3: It is forged from premium chrome-vanadium steel for high hardness, good toughness, and reliable durability.

Q4: What is the benefit of the mirror chrome finish?
A4: Mirror chrome plating improves appearance, provides good rust and corrosion resistance, and makes the wrench easy to clean and maintain.

Q5: What are the benefits of the double box-end design?
A5: It provides two different sizes in one wrench. The box-end profile surrounds the fastener more fully, distributing force evenly and helping reduce slipping.

Q6: Can it be used on seized or high-torque fasteners?
A6: It is suitable for standard fastening, installation, and maintenance work. For heavily rusted, seized, or extremely high-torque fasteners, use penetrating oil and suitable high-torque tools such as sockets or breaker bars.

Q7: Do you support customization?
A7: Yes. OEM/ODM customization is available for size combinations, logos, surface treatments, packaging, and tool set solutions.

OEM / ODM (Optional)

We provide flexible OEM/ODM services:

  • Custom Size Assortments: Different double-ended sizes, individual tools, and S-type box wrench sets.
  • Custom Branding: Laser engraving, steel stamping, screen printing, ink printing, labels, and private-label packaging.
  • Custom Surface Finishes: Mirror chrome, pearl nickel, satin chrome, sandblasting, black oxide, and more.
  • Custom Packaging: Hang cards, plastic racks, fabric pouches, roll bags, blister packs, color boxes, tool cases, and printed cartons.
  • Custom Tool Sets: Available in 4-piece, 6-piece, 8-piece, or other tailored configurations.
  • Sampling and Mass Production: Support for drawing-based or sample-based development, sample approval, and stable bulk production.

Please send us your required size list, brand artwork, samples, or packaging designs for a customized solution.