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Article code:
EAN / GTIN:
Manufacturer number:
Cat. No.:
Machine reamer H7, uncoated, Nominal ⌀ DC: 1,8mm
Article no.: 244467
Catalog no.: 163000
Article code:
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≤ 3.7 mm
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≤ 3.7 mm
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Even number of teeth with irregular spacing − teeth are exactly opposite each other; e. g. teeth 1 and 5.
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Correct undersize for pre-drilled holes can be found in the machining handbook.
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≥ 3.9 mm
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Product details
Technical Data
| Through-coolant | no | |
| Cooling lubricant | yes | |
| Interface position | on the machine | |
| Holder type | Plain shank | |
| Interface coding | ZYL; ZYL00180105 | |
| Holder shape | plain shank | |
| Holder version | metric | |
| Holder size, metric | 0018 mm | |
| Type of mounting | spigot | |
| Holder tolerance class | h$09 | |
| Shank diameter | 1.8 mm | |
| Shank length | 24 mm | |
| Cutter diameter 1st step min. | 1.8 mm | |
| Configurable | no | |
| Hole to be created 1st step, ISO tolerance class | H7 | |
| Hole to be created 1st step, upper dimension | 0.008 mm | |
| Hole to be created 1st step, lower dimension | 0.004 mm | |
| Cutting edge length | 10 mm | |
| Tap infeed length | 0.4 mm | |
| Number of teeth | 4 | |
| Twist direction | left-hand | |
| Helix angle max. | 7 degrees | |
| Taper lead angle | 45 degrees | |
| Type of reaming tool | for through holes | |
| Type of drive | machine reamer | |
| Tool material | HSS-E | |
| Cutting media, manufacturer’s designation | HSS-E | |
| Coating | uncoated | |
| Interface | joint 1 | |
| Gauge length | 27 mm | |
| Usable length | 21 mm | |
| Overall length | 46 mm | |
| Weight | 1 g | |
| Cutting direction | right-hand cutting | |
| Tool version | solid steel | |
| Standard | DIN 212 B | |
| Machining method | boring out | |
| Colour ring | without | |
| Type of product | cylindrical reamer | |
| Content | single part |
Identification & Classification
| Article number | 244467 | |
| Catalog number | 163000 | |
| EAN / GTIN | 4045197252579 | |
| Manufacturer number | 163000 1,8 | |
| Manufacturer/responsible person | Hoffmann Supply Chain GmbH & Co. KG, Poststraße 15, 90471 Nürnberg, Germany, www.hoffmann-group.com |
Application Table
N
20
N
20
P
15
P
10
P
7
P
5
P
4
M
5
M
5
S
5
K
5
N
13
Description
Version:
With long flutes and left-hand helix.
From size 1.8 even number of teeth and uneven spacing.
Up to size 3.7 both ends with external centres;
from size 3.9 both ends with internal centres.
Reamers finish ground for fit H7.
From size 1.8 even number of teeth and uneven spacing.
Up to size 3.7 both ends with external centres;
from size 3.9 both ends with internal centres.
Reamers finish ground for fit H7.
Application:
For reaming through holes. Also suitable for blind holes (from 3.9 mm ⌀) due to short chamfer lead.
Note:
- Straight flute machine chucking reamers − available ex-stock.
- For reamers with other diameters and fits see No. 162951.