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Article code:
High-precision countersink with unequal spacing with 3 drive flats 60° 20 mm
Article no.: 150817 20
Article code:
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Extremely unequal spacing (cutting edges arranged at unequal intervals)
Click to enlarge image
Click to enlarge image
- Countersink tip angle: 60
- Tool material: HSS
- Spacing of the countersink cutting edges: unequal spacing
- Standard: DIN 334
- Shank: Three clamping flats to h9
Product details
Technical Data
| External ⌀ | 20 mm | |
| Coating | TiAlN | |
| Countersink tip angle | 60 degrees | |
| Tool material | HSS | |
| Spacing of the countersink cutting edges | unequal spacing | |
| Number of cutting edges Z | 3 | |
| Standard | DIN 334 | |
| Shank | Three clamping flats to h9 | |
| Through-coolant | no | |
| smallest countersink ⌀ for holes from | 5 mm | |
| Overall length L | 67 mm | |
| Shank ⌀ Ds | 10 mm | |
| Feed f in steel < 500 N/mm2 | 0.22 mm/rev. | |
| Colour ring | green | |
| Type of product | Stepped drill and countersink |
Identification numbers & Classifications
| Article number | 150817 20 | |
| EAN / GTIN | 4045197889508 |
Application Table
N
75
N
75
N
50
P
65
P
50
P
30
P
18
P
8
H
8
M
16
M
10
S
12
K
25
N
60
N
Description
Version:
High-precision 60° countersink with unequal spacing.
Special geometry with extremely unequal spacing and matching cutting edge preparation. Radially relief ground. Flutes ground from solid. Newly developed special TiAlN coating for long service life.
Three drive flats on the shank for use in a 3-jaw chuck.
Special geometry with extremely unequal spacing and matching cutting edge preparation. Radially relief ground. Flutes ground from solid. Newly developed special TiAlN coating for long service life.
Three drive flats on the shank for use in a 3-jaw chuck.
Advantage:
Very smooth cutting throughout the entire countersinking operation. Chatter-free running for perfect results and optimum tool service life.
Application:
High-precision countersinks for production of exactly round 60° countersunk surfaces.