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Article code:
EAN / GTIN:
Manufacturer number:
Cat. No.:
HOLEX Pro Form fluteless machine tap with oil grooves HSS-E-PM, TiN, G: G1/4
Article no.: 2157661
Catalog no.: 139475
Article code:
Product details
Technical Data
| Through-coolant | no | |
| Cooling lubricant | yes | |
| Series | Pro Form | |
| Manufacturer’s designation | HOLEX Pro Form Maschinen-Gewindeformer mit Schmiernuten HSS-E-PM, TiN | |
| Interface position | on the machine | |
| Holder type | Plain shank | |
| Holder shape | plain shank | |
| Holder version | metric | |
| Holder size, metric | 0110 mm | |
| Holder tolerance class | h9 | |
| Shank diameter | 11 mm | |
| Thread type | G | |
| Thread nominal diameter inch | 0.25 in | |
| Thread | G1/4 | |
| Thread pitch | 1.337 mm | |
| Turns per inch | 19 | |
| Thread tolerance class | ISO 228 X | |
| Length of tapping part | 39.48 mm | |
| Taper lead angle | 7.5 degrees | |
| Number of teeth | 6 | |
| Taper lead form | C | |
| Cutting part version | with lubrication groove and dirt trap groove | |
| Application for type of drilling | Through hole; Blind hole | |
| To depth (x diameter) | 3; 3 | |
| Number of clamping slots | 6 | |
| Core hole diameter | 12.55 mm | |
| Core hole diameter guideline value | 12.55 mm | |
| Flank angle | 55 degrees | |
| Square-drive width across flats | 9 mm | |
| Tool material | HSS-E-PM | |
| Coating | TiN | |
| Interface | joint 1 | |
| Usable length | 39.48 mm | |
| Overall length | 100 mm | |
| Cutting direction | right-hand cutting | |
| Tool version | solid carbide | |
| Standard | DIN 2189 | |
| Machining method | thread processing internal | |
| Colour ring | green | |
| Type of product | Fluteless tap |
Identification & Classification
| Article number | 2157661 | |
| Catalog number | 139475 | |
| EAN / GTIN | 4069515003742 | |
| Manufacturer number | 139475 G1/4 | |
| 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
27
P
25
P
25
P
10
M
8
N
20
Description
Version:
DIN 2189 (≈ DIN 5156). With oil grooves; optimum lubrication effect even in deeper threads.
HOLEX Pro Form:
High-performance fluteless tap for use in a wide range of materials.
HOLEX Pro Form:
High-performance fluteless tap for use in a wide range of materials.
- HSS-E-PM tool material for high wear resistance.
- The latest-generation optimised HiPIMS TiN coating.
Application:
For Whitworth parallel pipe threads DIN-ISO 228/1 (threads that do not form a seal within the connection).