9-Piece Hardened and Extended Hex Key Set — A One-Stop Tool Set for Home Repairs, Bicycle Maintenance, and Furniture Assembly

This set includes 9 commonly used metric sizes (1.5 mm, 2 mm, 2.5 mm, 3 mm, 4 mm, 5 mm, 6 mm, 8 mm, 10 mm), covering everything from precision small screws to standard fasteners. The medium-to-long L-shaped design balances torque and maneuverability, making it easy to handle tasks ranging from deep-hole work to everyday assembly and disassembly.

🏗️ Forged from Premium Steel — Hardened Chrome Vanadium Steel (CR-V)
Forged from high-strength chrome vanadium steel (Chrome Vanadium Steel), this alloy steel achieves an ideal balance between hardness and toughness—providing sufficient rigidity to resist deformation while maintaining excellent toughness to prevent brittle fracture. Compared to ordinary carbon steel tools, chrome-vanadium steel offers significantly improved wear resistance and fatigue life.

🔥 High-Temperature Quenching and Hardening—High Torque · Excellent Toughness
Each wrench undergoes a full-body high-temperature quenching process, a key step in enhancing tool performance. After this quenching treatment, the product is hardened and reinforced, ensuring it remains secure and resistant to deformation even during high-intensity operations involving extreme tightening and loosening. The combination of high hardness and high toughness gives the wrench powerful gripping force while allowing it to withstand repeated impacts without fracturing.

🔧 Hex Flat Head + Ball Head — Two-in-One
Each wrench features a dual-head design, with each end offering distinct advantages:

Flat Head End (Hex Flat Head): With a large contact area, it allows for leverage and delivers powerful torque. Ideal for tightening deep-hole nuts and high-torque applications under standard conditions.

Ball-end (hex ball): Can be used at multiple angles (supports an incline of approximately 25°), allowing easy access to hex socket nuts. Ideal for tight spaces, angled holes, and other scenarios where standard tools struggle to maneuver.

With both head types integrated into a single wrench, one tool handles two types of tasks.

📐 90° Right-Angle Construction—Bends Precisely Without Rebound
Manufactured using a single-step 90° bending process, it bends precisely without rebound. This process ensures the accuracy and structural strength of the L-shaped corner, preventing angle rebound or deformation even with long-term use, and providing more direct and stable force transmission when applying torque.

🎨 Two Color Options—Glossy Black · Matte Silver
Glossy Black: Classic glossy black finish—sober and elegant, rust-resistant and wear-resistant

Matte Silver: Natural metallic matte finish—warm and understated

Both surface finishes undergo special treatment to provide rust, corrosion, and oxidation resistance, ensuring a longer service life. They remain rust-free in water spray tests, offering greater peace of mind during daily use.

📦 Boxed Storage — Neat and Organized
Comes with a professional storage box, with each compartment labeled with its corresponding size. Tools are easy to locate at a glance; simply return them to their original spots after use to prevent them from getting scattered or lost. The entire box weighs only 420g, making it lightweight and portable.

Detailed Specifications
Model: Long Side (mm)    Short Side (mm)
1.5:    74,14
2:81,15
2.5:87,17
3:94,20
4:103,22
5:127,    25
6:130,    28
8:143,    30
10:    165,    37
Medium-to-long design; the long side provides ample leverage for effortless tightening, while the short side is ideal for tight spaces.

Applications
Scenario: Description
🪑 Furniture Repair/Assembly: Assembly of flat-pack furniture (e.g., IKEA), tightening screws on tables and chairs
🚲 Bicycle Maintenance: Derailleur adjustment, brake alignment, tightening screws in various parts
🔧 Mechanical Repair: Disassembly, assembly, and maintenance of industrial equipment and mechanical components
🚗 Auto Repair:    Working on hex screws in vehicle interiors and engine compartments
🏠 Home Disassembly:    Routine home repairs such as bathroom fixtures, doors, windows, and light fixtures
🧸 Toy Disassembly and Repair:    Removing and installing screws in precision toys and models
⚡ Electric Bike Repair:    Tightening and maintenance of electric bike components

Quality Assurance
Material Assurance: Forged from hardened chrome-vanadium steel; built with solid materials
Craftsmanship Assurance: High-temperature quenching and full heat treatment + 90° single-step bending
Rust Prevention Assurance: Special surface treatment; passes water spray test without rusting
Reputation Guarantee: Authentic user reviews—“Great feel, rock-hard steel,” “Tightens screws quickly and effectively, resists deformation”

Why Choose This Wrench Set?
Complete Size Range: 9 sizes covering 1.5mm to 10mm—one set meets all your daily needs

Superior Materials: Chromium-vanadium steel + high-temperature quenching—sturdy, durable, and resistant to deformation

Dual-Head Design: Flat-head for high torque + ball-head for multi-angle access, handling various work scenarios

Convenient Storage: Boxed with designated slots and clear size labels for efficient access

Great Value: Solid materials and craftsmanship—well worth the price