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High-precision countersink 90° 20,5 mm
Article no.: 150152 20,5
Article code:
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Three-flute countersinks for accurate centring.
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- Countersink tip angle: 90
- Tool material: HSS
- Number of cutting edges Z: 3
- Standard: DIN 335 C
- Shank: Shank with h9 and three drive flats
Product details
Technical Data
| External ⌀ | 20.5 mm | |
| Coating | uncoated | |
| Countersink tip angle | 90 degrees | |
| Tool material | HSS | |
| Number of cutting edges Z | 3 | |
| Standard | DIN 335 C | |
| Shank | Shank with h9 and three drive flats | |
| Through-coolant | no | |
| smallest countersink ⌀ for holes from | 3.5 mm | |
| Overall length L | 63 mm | |
| Shank ⌀ Ds | 10 mm | |
| for countersunk screws DIN 7991 | M10 | |
| Feed f in steel < 500 N/mm2 | 0.16 mm/rev. | |
| Shank tolerance | h9 | |
| Colour ring | without | |
| Type of product | Stepped drill and countersink |
Identification numbers & Classifications
| Article number | 150152 20,5 | |
| EAN / GTIN | 4045197717030 | |
| Manufacturer number | 150152 20,5 |
Application Table
N
70
N
33
P
28
P
27
P
27
Description
Version:
All countersinks have 3 cutting edges, radially relieved.
Flutes are ground from solid.
High-precision countersink, produced with tight manufacturing tolerances similar to DIN 335-C.
Three drive flats on the shank for use in a 3-jaw chuck.
Flutes are ground from solid.
High-precision countersink, produced with tight manufacturing tolerances similar to DIN 335-C.
Three drive flats on the shank for use in a 3-jaw chuck.
Application:
High precision countersinks for chatter-free countersinking.
Downloads & documents
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| Coating | uncoated | TiAlN | TiAlN | AlTiCN | TiAlN |
| for countersunk screws DIN 7991 | M10 | M10 | M10 | M10 | M10 |
| Through-coolant | no | no | no | no | no |
| Countersink tip angle | 90 degrees | 90 degrees | 90 degrees | 90 degrees | 90 degrees |
| Shank | Shank with h9 and three drive flats | Shank with h9 and three drive flats | Three clamping flats to h9 | Shank with h9 and three drive flats | Three clamping flats to h9 |
| Shank tolerance | h9 | h9 | h9 | h9 | h9 |
| Type of product | Stepped drill and countersink | Stepped drill and countersink | Stepped drill and countersink | Stepped drill and countersink | Stepped drill and countersink |