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Article code:
EAN / GTIN:
Manufacturer number:
Cat. Nr.:
GARANT Master Tap INOX machine tap HSS-E-PM, TiAlN, UNC: 7/8-9
Article no.: 137857 7/8-9
Article code:
- Thread type: UNC
- Flank angle: 60
- Tool material: HSS E PM
- Standard: DIN 376
- Tolerance class: 2BX
Product details
Technical Data
| Series | Master Tap | |
| Thread size | 7/8-9 UNC | |
| Coating | TiAlN | |
| Thread type | UNC | |
| Flank angle | 60 degrees | |
| Tool material | HSS E PM | |
| Standard | DIN 376 | |
| Tolerance class | 2BX | |
| Taper lead form | C | |
| Helix angle | 45 degrees | |
| Shank | Plain shank with h9 | |
| Through-coolant | no | |
| Application for type of drilling | up to 2.5×D for blind holes | |
| Cutting direction | right-hand | |
| Thread pitch | 2.822 mm | |
| Threads per inch | 9 | |
| Thread ⌀ | 22.23 mm | |
| Overall length L | 140 mm | |
| Shank ⌀ Ds | 18 mm | |
| Shank square □ | 14.5 mm | |
| Tapping hole ⌀ | 19.5 mm | |
| Type of threading tool | Machine tap for dynamic machining | |
| Number of clamping slots | 4 | |
| Colour ring | blue | |
| Number of cutting edges Z | 4 | |
| Thread depth | 55.56 mm | |
| Type of product | Tap |
Identification & Classification
| Article number | 137857 7/8-9 | |
| EAN / GTIN | 4062406210137 | |
| Manufacturer number | 137857 7/8-9 | |
| Manufacturer/responsible person | Hoffmann Supply Chain GmbH & Co. KG, Poststraße 15, 90471 Nürnberg, Germany, www.hoffmann-group.com |
Application Table
N
28
P
23
P
23
P
12
M
11
M
9
Description
Version:
High-performance tap, specially developed for good process reliability in stainless and acid-resistant steels and duplex materials. The 45° helix angle of the flutes facilitates chip formation especially in ductile austenitic CrNi steels.
- HSS-E-PM tool material for maximum wear resistance.
- The latest generation of TiAlN multi-layer coating.
- Parameterised flute geometry for optimum chip formation and rigidity.
Application:
For UNC uniform coarse threads ASME − B1.1.