What is the KENFA MKR series used for?
Small-aperture internal boring. The source describes the tool material as Tungsten steel cemented carbide and gives the following application wording: Stainless steel, die steel, cast iron, alloy steel and steel parts.
Which MKR catalog model designations are listed?
The production catalog image contains 44 visible model rows. The table below makes those designations crawlable while preserving their source group and position. Model-code tokens are not converted into dimensions unless a labeled engineering contract is available.
58-degree catalog group (古铜)
| Model designation | Catalog source |
|---|---|
| MKR 4R0.5 L10 | Page 33, column 1, row 1 |
| MKR 4R0.5 L15 | Page 33, column 1, row 2 |
| MKR 4R0.75 L10 | Page 33, column 1, row 3 |
| MKR 4R0.75 L15 | Page 33, column 1, row 4 |
| MKR 5R0.5 L15 | Page 33, column 1, row 5 |
| MKR 5R0.5 L22 | Page 33, column 1, row 6 |
| MKR 5R0.75 L15 | Page 33, column 1, row 7 |
| MKR 5R0.75 L22 | Page 33, column 1, row 8 |
| MKR 5R1.0 L15 | Page 33, column 1, row 9 |
| MKR 5R1.0 L22 | Page 33, column 1, row 10 |
| MKR 6R0.5 L15 | Page 33, column 1, row 11 |
58-degree catalog group (古铜)
| Model designation | Catalog source |
|---|---|
| MKR 6R0.5 L22 | Page 33, column 2, row 1 |
| MKR 6R0.75 L15 | Page 33, column 2, row 2 |
| MKR 6R0.75 L22 | Page 33, column 2, row 3 |
| MKR 6R1.0 L15 | Page 33, column 2, row 4 |
| MKR 6R1.0 L22 | Page 33, column 2, row 5 |
| MKR 6R1.5 L22 | Page 33, column 2, row 6 |
| MKR 8R0.5 L22 | Page 33, column 2, row 7 |
| MKR 8R0.5 L28 | Page 33, column 2, row 8 |
| MKR 8R0.75 L22 | Page 33, column 2, row 9 |
| MKR 8R1.0 L22 | Page 33, column 2, row 10 |
| MKR 8R1.5 L22 | Page 33, column 2, row 11 |
65-degree catalog group (古铜)
| Model designation | Catalog source |
|---|---|
| MKR 4R0.5 L10 H1.2 | Page 33, column 3, row 1 |
| MKR 4R0.75 L10 H1.2 | Page 33, column 3, row 2 |
| MKR 5R0.5 L15 H1.2 | Page 33, column 3, row 3 |
| MKR 5R0.75 L15 H1.2 | Page 33, column 3, row 4 |
| MKR 5R1.0 L15 H1.2 | Page 33, column 3, row 5 |
| MKR 6R0.5 L15 H1.8 | Page 33, column 3, row 6 |
| MKR 6R0.5 L22 H1.8 | Page 33, column 3, row 7 |
| MKR 6R0.75 L15 H1.8 | Page 33, column 3, row 8 |
| MKR 6R0.75 L22 H1.8 | Page 33, column 3, row 9 |
| MKR 6R1.0 L15 H1.8 | Page 33, column 3, row 10 |
| MKR 6R1.0 L22 H1.8 | Page 33, column 3, row 11 |
65-degree catalog group (古铜)
| Model designation | Catalog source |
|---|---|
| MKR 6R1.5 L15 H1.8 | Page 33, column 4, row 1 |
| MKR 6R1.5 L22 H1.8 | Page 33, column 4, row 2 |
| MKR 8R0.5 L15 50L H1.8 | Page 33, column 4, row 3 |
| MKR 8R0.5 L22 50L H1.8 | Page 33, column 4, row 4 |
| MKR 8R0.75 L15 50L H2 | Page 33, column 4, row 5 |
| MKR 8R0.75 L22 50L H2 | Page 33, column 4, row 6 |
| MKR 8R1.0 L15 50L H2.6 | Page 33, column 4, row 7 |
| MKR 8R1.0 L22 50L H2.6 | Page 33, column 4, row 8 |
| MKR 8R1.5 L15 50L H2.6 | Page 33, column 4, row 9 |
| MKR 8R1.5 L22 50L H2.6 | Page 33, column 4, row 10 |
| MKL 4R0.5 L10 H1 | Page 33, column 4, row 11 |
What catalog facts are safe to use for selection?
| Catalog series | MKR |
|---|---|
| Operation route | Small-aperture internal boring |
| Catalog group | 58-degree and 65-degree catalog groups |
| Published material wording | Tungsten steel cemented carbide |
| Published application wording | Stainless steel, die steel, cast iron, alloy steel and steel parts. |
| Primary source | KENFA 2025 catalog, printed page 33; production Media Library asset CI-32. |
How should buyers request model confirmation?
- Choose the closest catalog series and copy the complete model designation.
- Provide the bore, depth, profile or thread requirement and tolerance.
- Identify the workpiece material, machine, holder or shank and required reach.
- Attach a drawing or clear current-tool photo and state the quantity.
Buyer questions about the MKR series
Are R, B, L, D, H, T and A tokens dimensions?
They are preserved as parts of the published model designation. This page does not assign a dimensional meaning unless the source explicitly labels it.
Does this page provide cutting speed or feed values?
No. Cutting conditions are not added without a model-bound KENFA engineering source.
Can the catalog material wording confirm every coating or finish?
No. The wording supports series-level routing only; exact grade, coating, finish and variant compatibility must be confirmed for the selected model.
What should be included in the RFQ?
Send the complete model string, bore and depth, workpiece material, tolerance, machine and holder details, drawing or photo, quantity and current machining issue.