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High-precision countersink, long 90°, uncoated, External ⌀ Dc: 20,5mm
Article no.: 150371 20,5
Article code:
- Countersink tip angle: 90
- Tool material: HSS
- Number of cutting edges Z: 3
- Standard: Manufacturer’s standard
- Shank: Plain shank with h9
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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 | Manufacturer’s standard | |
| Shank | Plain shank with h9 | |
| Through-coolant | no | |
| smallest countersink ⌀ for holes from | 3.5 mm | |
| Overall length L | 114 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 | |
| Pre-drill ⌀ | 3.5 mm | |
| Type of product | Stepped drill and countersink |
Identification numbers & Classifications
| Article number | 150371 20,5 | |
| EAN / GTIN | 4045197086143 | |
| Manufacturer number | 150371 20,5 |
Application Table
N
70
N
33
N
20
P
28
P
27
P
27
Description
Version:
All countersinks have 3 cutting edges, radially relief ground. Flutes ground from solid.
High-precision countersink, produced to tight manufacturing tolerances similar to DIN 335-C with long plain shank.
High-precision countersink, produced to tight manufacturing tolerances similar to DIN 335-C with long plain shank.
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| External ⌀ | 20.5 mm | 20.5 mm | 20.5 mm | 20.5 mm | 20.5 mm | 20.5 mm | 20.5 mm | 20.5 mm | 20.5 mm | 20.5 mm | 20.5 mm | 20.5 mm |
| Coating | uncoated | uncoated | TiAlN | uncoated | TiN | TiAlN | TiAlN | uncoated | TiAlN | TiAlN | TiAlN | TiAlN |
| Shank | Plain shank with h9 | Plain shank with h9 | Plain shank with h9 | Plain shank with h9 | Plain shank with h9 | Plain shank with h9 | Shank with h9 and three drive flats | Shank with h9 and three drive flats | Parallel shank to h9 | Three clamping flats to h9 | Three clamping flats to h9 | Plain shank with h9 |
| Tool material | HSS | HSS | HSS | HSS | HSS | HSS | HSS | HSS | HSS | HSS | HSS | HSS |
| Shank ⌀ Ds | 10 mm | 10 mm | 10 mm | 10 mm | 10 mm | 10 mm | 10 mm | 10 mm | 10 mm | 10 mm | 10 mm | 10 mm |
| Feed f in steel < 500 N/mm2 | 0.16 mm/rev. | 0.16 mm/rev. | 0.16 mm/rev. | 0.16 mm/rev. | 0.16 mm/rev. | 0.22 mm/rev. | 0.22 mm/rev. | 0.16 mm/rev. | 0.22 mm/rev. | 0.22 mm/rev. | 0.16 mm/rev. | 0.16 mm/rev. |
| Type of product | Stepped drill and countersink | Stepped drill and countersink | Stepped drill and countersink | Stepped drill and countersink | Stepped drill and countersink | Stepped drill and countersink | Stepped drill and countersink | Stepped drill and countersink | Stepped drill and countersink | Stepped drill and countersink | Stepped drill and countersink | Stepped drill and countersink |