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DIN counterbore for tapping drill holes 6,5X2,9 mm GARANT
Article no.: 156220 6,5X2,9
Article code:
- Tool material: HSS
- Number of cutting edges Z: 3
- Standard: DIN 373
- Shank: Parallel shank to h9
Product details
Technical Data
| Counterbore ⌀ | 6,5 mm | |
| Coating | uncoated | |
| Pin ⌀ | 2,9 mm | |
| Tool material | HSS | |
| Number of cutting edges Z | 3 | |
| Standard | DIN 373 | |
| Shank | Parallel shank to h9 | |
| for screw size | M3.5 | |
| Overall length L | 71 mm | |
| Shank ⌀ Ds | 5 mm | |
| Feed f in steel < 500 N/mm2 | 0,09 mm/rev. | |
| Through-coolant | no | |
| Pre-drill ⌀ | 2,9 mm | |
| Step height L1 1st step with chamfer | 14 mm | |
| Cutter length lc | 14 mm | |
| Point angle | 180 degrees | |
| Type of product | Counterbore |
Identification & Classification
| Article number | 156220 6,5X2,9 | |
| EAN / GTIN | 4045197087904 | |
| Manufacturer number | 156220 6,5X2,9 | |
| Manufacturer/responsible person | Hoffmann Supply Chain GmbH & Co. KG, Poststraße 15, 90471 Nürnberg, Deutschland, www.hoffmann-group.com |
Application Table
N
33
P
28
P
27
P
27
Description
Version:
Three edged, spiral fluted counterbore with fixed pilot for tapping drill holes.
Application:
For counterboring socket head screws DIN 912, 6912, 7984 and slotted cheese head screws ISO 1207 (DIN 84).
The pilot diameter matches the tapping hole diameter.
The pilot diameter matches the tapping hole diameter.