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DIN counterbore for through holes, uncoated, Counterbore ⌀ D1 ×pin ⌀ D2: 6,5X3,2mm
Article no.: 156020 6,5X3,2
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Article code:
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- Tool material: HSS
- Number of cutting edges Z: 3
- Standard: DIN 373
- Shank: Parallel shank to h9
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Product details
Technical Data
| Counterbore ⌀ | 6.5 mm | |
| Coating | uncoated | |
| Pin ⌀ | 3,2 mm | |
| Tool material | HSS | |
| Number of cutting edges Z | 3 | |
| Standard | DIN 373 | |
| Shank | Parallel shank to h9 | |
| for screw size | M3 | |
| for quality of the hole | f | |
| 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 ⌀ | 3.2 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 |
156020 6,5X3,2
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| EAN / GTIN |
4045197087652
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|
| Manufacturer number |
156020 6,5X3,2
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| Manufacturer/responsible person | Hoffmann Supply Chain GmbH & Co. KG, Poststraße 15, 90471 Nürnberg, Germany, www.hoffmann-group.com |
Application Table
suitable for / [m/min]
N
ISO code:
33
suitable for / [m/min]
P
ISO code:
28
suitable for / [m/min]
P
ISO code:
27
suitable for / [m/min]
Description
Version:
Spiral fluted counterbore. The pilot ⌀ matches the intended purpose:
f − for through holes fine quality to DIN ISO 273.
m for through holes medium quality to DIN ISO 273.
f − for through holes fine quality to DIN ISO 273.
m for through holes medium quality to DIN ISO 273.
Application:
For counterboring socket head screws DIN 912, 6912, 7984, and cheese head screws ISO 1207 (DIN 84).