2026 Updated Diamond Polishing Tool: High Efficiency for Metal, Wood & Leather Projects

• Customization: Available
• Material: Diamond Coating + Steel Core
• Grit Size: 150 Grit (Medium)
• Model NO.: BL-DF005
• Total Length: 180mm / 7.09 Inches
• Hardness: HRC 60+
• Application: Metal, Wood, Leather, Jewelry
• Design: Ultra Thin & Non-Deform
• Surface Type: Even Sand Coating
• Usage Scenario: DIY, Professional, Automotive
• Feature: High Efficiency, Precise Grinding
• Transport Package: Carton
• Specification: customized
• Trademark: Bline
• Origin: China
• Package Size: 50.00cm * 45.00cm * 30.00cm
• Package Gross Weight: 8.700kg

Product Description

Specification

Product Name	Diamond File
Model	CF400 / CF408
Grit Size	150 Grit (Medium)
Total Length	180mm (7.09 inches)
Material	Diamond Coating + Steel Core
Application	Metal, Wood, Leather, Jewelry

Product Description

Ultra Thin Flat Oblique Diamond File: The Versatile Grinding Tool for Precision Work

When it comes to precise grinding, trimming, and polishing, the Ultra Thin Flat Oblique Diamond File (Models CF400/CF408) stands out as a reliable, high-efficiency tool for both professional craftsmen and DIY enthusiasts.
 
Crafted with a diamond-coated steel core and 150-grit medium abrasion, this file delivers exceptional hardness (suitable for quenched high-speed steel) and even sand distribution—doubling grinding efficiency while maintaining a smooth, consistent finish. Its ultra-thin design (0.79mm file head) and 180mm total length allow easy access to tight corners and fine details, making it ideal for working on metal, wood, leather, jewelry, and even automotive or jade crafts.
 
Designed for one-handed, fatigue-free operation, the file is durable, non-deformable, and comes in a 14-piece set (CF400) for diverse grinding needs. Whether you're trimming metal edges, polishing uneven leather, or finishing furniture corners, this multi-purpose diamond file balances precision, durability, and ease of use to elevate every project.

Packing & Delivery

Company Profile

Jiangsu B-Line Tools Co.,Ltd.

Jiangsu B-Line Tools Co., Ltd.,it is specialized in all kinds of professional and DIY painting tools, automotive products, workwear and painting accessories. At the same time, we also support OEM and customization services according to your requirements.
Our team is well experienced and has been in trading for more than 10 years. We know what you want and can help you find the right products and the right direction for your market.
We know our local market well and have long-standing and stable business cooperation with different manufacturers all around China. And even we have our own paint brush factory, which ensures that we can offer you the most competitive prices, better quality and delivery control.