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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 |
Article number | 150371 20,5 | |
EAN / GTIN | 4045197086143 | |
Manufacturer number | 150371 20,5 |
This article |
Recommendations |
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![]() ![]() High-precision countersink, long 90° 20,5 mm |
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Coating | uncoated | uncoated | uncoated | uncoated | uncoated | uncoated |
Overall length L | 114 | 63 | 63 | 164 | 63 | 63 |
Through-coolant | no | no | no | no | no | no |
Countersink tip angle | 90 | 90 | 90 | 90 | 90 | 90 |
Standard | Manufacturer’s standard | DIN 335 C | DIN 335 C | Manufacturer’s standard | DIN 335 C | DIN 335 C |
Shank tolerance | h9 | h9 | h9 | h9 | h9 | h9 |
Shank ⌀ Ds | 10 | 10 | 10 | 10 | 10 | 10 |