Products Description
3/16" Round File (4.8mm x 8") – Precision Sharpening
for Professional Chainsaw Chains
Industrial-Grade Black Round File Engineered for High-Carbon Steel Chain Tooth Restoration
Round file 3/16＂4.8mmx8"black
The 3/16" (4.8mm) round file, measuring 8 inches in total length, is a precision-sharpening instrument specifically engineered for the maintenance of professional chainsaw chains. Manufactured from high-carbon tool steel with a specialized black oxide surface treatment, this file delivers consistent material removal rates and extended service life under repeated industrial use. Its precisely controlled diameter of 4.8mm is calibrated to match the standard guide bar groove and cutter tooth geometry of most professional-grade saw chains, ensuring optimal filing angle retention and restoration of factory-specified cutting performance. Certified for compatibility with major chain pitch classes, this round file serves as an essential consumable for forestry professionals, arborists, and equipment maintenance workshops seeking reliable, repeatable sharpening outcomes. The black finish not only enhances corrosion resistance but also reduces glare during precision work, improving operator visibility and filing accuracy.
Technical Profiles & Materials
High-Carbon Steel Substrate: Manufactured from premium high-carbon tool steel, providing exceptional hardness and wear resistance for sustained cutting-edge restoration across multiple sharpening cycles.
High-Carbon Steel Substrate: Manufactured from premium high-carbon tool steel, providing exceptional hardness and wear resistance for sustained cutting-edge restoration across multiple sharpening cycles.
Precision-Ground Diameter: Diameter precisely held at 4.8mm (3/16"), ensuring exact compatibility with standard chainsaw guide bar and cutter tooth geometries for consistent, repeatable sharpening results.
Technical Specifications
| ITEM | DETAILS |
| Type | Round Chainsaw Chain File |
| Application | Hand Sharpening of Chainsaw Cutter Teeth |
| Code | 2901154 |
| Material | High-Carbon Tool Steel |
| Hardness | ≥ 65 HRC (Heat-Treated for Durability) / ≥ 65 HRC |
| Brand Name | SeaSummer |
| Surface Finish | Black Oxide Coating (Anti-Corrosion, Anti-Glare) |
| Delivery Time | 30 Days |
| Packaging | Cardboard packaging |
Products Application
Professional Forestry &
Logging
Essential for commercial timber felling operations, enabling rapid, on-site restoration of dull chainsaw teeth to maintain cutting efficiency and operational safety during high-volume harvesting.
Arborist & Municipal
Tree Care
Widely adopted by tree care specialists and municipal fleet maintenance crews for routine chain sharpening, ensuring precise tooth geometry and reduced vibration during precision trimming and hazardous tree removal.
quipment Rental & Repair Workshops
Serves as a high-durability consumable for chainsaw rental fleets and sharpening service centers, delivering consistent material removal and extended service life across repeated industrial-grade usage cycles.
Quality and Craftsmanship Details
Products Package
About Us
As a premier garden machinery parts supplier, Jiaxing Norsun Trading Co., Ltd. bridges global distributors with over 100 vetted China manufacturers. We streamline your B2B supply chain through strict quality control, flexible production, and factory-direct wholesale pricing. Partner with us for reliable, high-volume sourcing of precision-engineered outdoor power equipment components.
Trusted Partnership Power
YOUR PROFESSIONAL ONE-STOP SOURCE
FOR 10000+ OUALITY PARTS
Verified Factory Excellence
BACKED BY 200+ TRUSTED FACTORY PARTNERS
Production process
Quality control
Expo experience
Customer Reviews
FAQ
Q: Are you an impartial industrial components dealer or a direct China water pump factors factory?
A:We are a direct, ISO9001-certified engineering water pump components manufacturing facility and precision fluid-control factor manufacture exporter primarily based in China. We function our personal cleanroom injection molding bays, computerized ultrasonic welding arrays, computerized hydraulic stress check stations, and clean-room packaging lines, passing direct-factory wholesale price financial savings straight to your element procurement margins.
Q: Can your manufacturing unit furnish full certification forms for food-contact or consuming water compliance?
A: Yes, absolutely. For food, beverage, or scientific applications, our manufacturing unit makes use of one hundred percent virgin, un-recycled polypropylene resins accompanied by means of fabric traceability certificates. We mechanically furnish B2B purchasers with complete FDA compliance documentation, NSF-grade compound declarations, and RoHS/REACH chemical protection screening sheets to make certain clean clearance thru worldwide customs.
Q: Do you provide customization picks for distinctly corrosive fluids like sturdy acids or ozone?
A: Yes, we are a thoroughly succesful OEM/ODM supplier. For aggressive chemical or ozone environments, we can improve the 12x26.5mm valve configuration in our factory: substituting the general PP housing with top class PVDF (Fluoropolymer) and changing any steel springs with Hastelloy or whole springless gravity-ball architecture, making sure final chemical resistance.
Q: How do we impervious a pattern batch to execute computerized lifecycle and burst-pressure testing?
A: We relatively inspire complete laboratory contrast earlier than logging mass grant agreements. We can ship a pattern lot of 5-10 gadgets of our inventory 12x26.5mm take a look at valves for assessment (setup costs and DHL/FedEx air freight apply). Once the factors pass by your inner lifecycle verification and a formal wholesale quantity manufacturing contract or container run is locked in, the sampling charges are a hundred percent credited returned to your industrial balance.
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