Machine Nut Tap FZ HSS-G - Tr 28 x 5 by VÖLKEL, item no. 79152, suitable for cutting internal threads.
Use this tool when you need reliable thread creation or re-tapping on the shop floor. Correct preparation, alignment, and lubrication are the main practical checkpoints.
Tr identifies trapezoidal threads typically used for lead screws, spindles, and power transmission. HSS-G indicates ground high speed steel, typically used when you need a clean profile and stable tool guidance.
Note Verify the workpiece preparation before you start and stop if torque increases unexpectedly.
Do you need help selecting or using the product?
Use the contact form.
| Type of thread | metric ISO- trapezoidal thread |
|---|---|
| Standard | DIN |
| Material | HSS-G |
| Tolerance | 7H |
| Size | Tr 28 x 5 |
| Overall length (L1) | 265 mm |
| Thread length (L2) | 170 mm |
| Core hole diameter (D1) | 23.25 mm |
| Shank diameter (D2) | 22.0 mm |
| Drive connector | 18.0 mm |
| EAN | 4022835791522 |
| Item number | 79152 |
| Type of flute | straight fluted |
| Application | for through holes |
| Thread standard | DIN 103 |









