Published: 25 October 2026
Identify the problem before changing the coating
Record whether the issue is material adhering to the edge, packed flutes, abrasion, chipping or unacceptable finish. Add the aluminum alloy and condition, operation, tool dimensions, holder projection and lubrication arrangement. A photograph of a used tool can document the observation, but cannot establish its cause alone.
Keep tool geometry in the comparison. Changing flute count, reach, edge preparation and coating together makes it difficult to identify which change affected the result.
Compare coating families without treating them as identical products
| Option | Useful distinction | What to request |
|---|---|---|
| Polished uncoated carbide | A finish-sensitive application may benefit from an appropriate sharp, uncoated geometry. | Edge preparation, polished areas and the maker's material guidance. |
| TiB2 | Harvey describes low affinity to aluminum and reduced adhesion/chip packing for its coating. | Exact coating designation and the intended alloy/application. |
| ZrN | Harvey lists ZrN for non-ferrous applications, including abrasive aluminum alloys. | Confirmation for the actual alloy and tool geometry. |
| DLC / ta-C | DLC is a coating family. Hauzer discusses ta-C tooling; Ingersoll provides an aluminum end-mill example. | The actual coating type and supplier data, not color alone. |
These references describe their manufacturers' technologies. They do not establish the coating, origin or performance of a FLUTEX item.
Ask separately about abrasive alloys and finish
Do not use the same request for a known 6063 extrusion and an unidentified aluminum casting. Give the alloy or ask the material supplier to identify it. Tell the tool supplier whether wear resistance, burr control or a visible finish is the acceptance priority.
A coating comparison should include the actual edge geometry. Harvey notes that coating and edge sharpness involve trade-offs in finish-sensitive work; it also distinguishes TiB2 from options intended for abrasive materials. Request an application-specific shortlist rather than a general best-coating claim.
Do not identify a coating from its color
Ask the quotation to name the coating or state uncoated. A supplier's proprietary designation may describe a specific process; an abbreviation alone does not establish equivalence to another maker's product. Keep any claimed coating thickness, hardness or friction value tied to a dated data sheet for the actual coating.
Do not copy a coating maker's laboratory value into a product listing as if it were measured on the offered end mill. No such numerical coating values are assigned to FLUTEX tools in this guide.
Run a useful comparison
Agree on the part and acceptance criteria before the trial. Record machine, holder, tool reference, alloy, actual cutting values, engagement, lubrication and accepted output. Photograph the tool edge consistently and note the reason the trial stopped.
Ask the manufacturer for operating values for the exact tool. Use the calculator only to convert approved milling inputs. A supplier example on another alloy or tool does not support a guaranteed tool-life multiplier for your process.
What to send for a quotation
Include diameter, cutting length, overall length, shank, flute count, corner geometry, coating/finish preference, application, quantity and delivery city. If the current coating is unknown, say so and provide its marking and source document. FLUTEX can review the enquiry without inventing a coating identity.
References and scope
- Harvey Performance — TiB2 coating
- Harvey Performance — coating overview
- Hauzer — hard low-friction tool coatings
- Ingersoll — DLC ta-C aluminum end-mill example
Technical references do not establish approval, partnership or certification of a FLUTEX product. The checklists organize selection and evidence; operating instructions come from the tool and machine manufacturers.
