Products / Diamond & CBN Tools / Diamond Files & Mounted Points
INDUSTRIAL HAND FINISHING TOOLS
Titanium-Coated Diamond Needle File Sets
Titanium-coated diamond needle files are manual precision-finishing tools for localized correction, deburring and contour work on suitable cemented carbide, technical ceramics, glass and other hard, brittle materials. Three source-listed size series cover 140, 160 and 180 mm overall lengths.
- 10 source-listed profile options
- 3 × 140, 4 × 160 and 5 × 180 mm series
- 50/70 source-listed standard grit
What Are Titanium-Coated Diamond Needle Files Used For?
These files are best used for controlled hand finishing where a powered grinding tool would remove too much material or cannot reach the feature. Select the cross-section to match the workpiece geometry, then confirm grit, working length and file size against the required stock removal and finish.
Source-Listed Size Series
| Source size designation | Overall length | Diamond working length | Set format |
|---|---|---|---|
| 3 × 140 mm | 140 mm | 50 mm | 10 profile options |
| 4 × 160 mm | 160 mm | 50 mm | 10 profile options |
| 5 × 180 mm | 180 mm | 70 mm | 10 profile options |
Dimension note: the supplier uses 3 × 140, 4 × 160 and 5 × 180 mm as commercial size designations. Profile width and thickness vary by file shape; approve the final profile drawing before ordering.
Profile Options and Typical Access
| Profile | Typical contact geometry | Selection note |
|---|---|---|
| Flat | Flat faces and straight edges | Broad contact for controlled surface correction |
| Half-round | Flat surfaces and concave radii | One flat face plus one curved face |
| Triangle | Internal corners, V-grooves and narrow angles | Use the edge carefully to avoid local overcutting |
| Square | Square slots and right-angle corners | Confirm corner access and clearance |
| Round | Holes, radii and concave profiles | Select diameter for the smallest accessible feature |
| Sharp flat | Narrow flats and tapered access | Useful where a standard flat file is too wide |
| Knife | Narrow grooves and acute angles | Thin edge requires controlled manual pressure |
| Single-side triangle | Selective contact on angled features | Use when only one working face should contact the part |
| Double half-round | Curved profiles and blended radii | Confirm cross-section against the workpiece drawing |
| Oval | Elliptical and compound contours | For blended surfaces where round contact is too concentrated |
Verified Cross-Section Examples
| Series | Flat profile | Half-round profile | Triangle profile | Round profile |
|---|---|---|---|---|
| 3 × 140 mm | 6 × 1.5 mm | 6.5 × 2 mm | 4 mm width | 3 mm diameter |
| 4 × 160 mm | 8 × 2 mm | 8 × 2 mm | 5 mm width | 4 mm diameter |
| 5 × 180 mm | 9.5 × 2 mm | 9 × 3 mm | 6 mm width | 5 mm diameter |
The dimensions above are source-listed examples for four profiles. Dimensions for the other profiles, tolerances and handle details must be confirmed on the quotation or approved drawing.
Technical Specification
| Item | Source-listed / confirmation basis |
|---|---|
| Tool type | Manual diamond needle files |
| Abrasive | Diamond |
| Working-layer process | Supplier catalogue classifies this file range under the YL02 electroplated series |
| Surface description | Source listing describes a gold titanium-coated finish; coating process and thickness require confirmation |
| Source-listed standard grit | 50/70; alternative grit must be confirmed for the application |
| Overall length series | 140, 160 and 180 mm |
| Working length series | 50, 50 and 70 mm respectively |
| Profile options | 10 source-listed shapes; custom combinations are reviewable |
| Packaging and quantity | Confirm single-piece or set requirement, MOQ and packing before order |
Application Fit and Limits
Best-Fit Work
Manual correction of cemented-carbide die features, cutting-tool edges, small radii, grooves and localized surfaces.
Other Reviewable Materials
Precision deburring and contour finishing on suitable technical ceramics, glass and other hard, brittle non-ferrous materials.
Important Limits
Not intended for heavy stock removal or powered rotary use. Diamond is not the default abrasive for hardened ferrous steel.
Information Needed for Selection and Quotation
- Workpiece material, grade and hardness
- Feature drawing or clear photos
- Required profile and smallest access size
- Preferred overall and working length
- Grit and target surface condition
- Single piece or set composition
- Trial quantity and annual demand
- Packaging or private-label requirements
Use and safety note: inspect the handle and working surface before use, wear suitable eye protection, and apply controlled manual pressure. Do not mount these hand files in a rotary tool. Confirm material compatibility before working on finished or coated components.
Related Products
Diamond Whetstone Hand Files
Compact hand-file options focused on flat, half-round and triangle profiles.
Sintered Diamond Mounted Points
Powered compact tools for localized grinding, chamfering and profile correction.
Electroplated Diamond & CBN Mounted Points
Custom profile tools for powered internal, groove, chamfer and localized grinding.
Need help choosing between a manual diamond file and a powered mounted point? Send the workpiece material, feature drawing, required finish and expected quantity through WhatsApp for an application review.