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Article code:
EAN / GTIN:
Manufacturer number:
Cat. No.:
HOLEX Pro Form fluteless machine tap without oil grooves 6GX, TiN, M: M4
Article no.: 2157726
Catalog no.: 139143
Article code:
New product
Product details
Technical Data
| Through-coolant | no | |
| Entry of cooling lubricant | without cooling lubricant entry | |
| Escape of cooling lubricant | without cooling lubricant exit | |
| Cooling lubricant | yes | |
| Series | Pro Form | |
| Manufacturer’s designation | HOLEX Pro Form Maschinen-Gewindeformer ohne Schmiernuten | |
| Interface position | on the machine | |
| Holder type | Plain shank | |
| Interface coding | ZYL; ZYL00452105 | |
| Holder shape | plain shank | |
| Holder version | metric | |
| Holder size, metric | 0045 mm | |
| Holder tolerance class | h9 | |
| Shank diameter | 4.5 mm | |
| Shank length | 50 mm | |
| Thread type | M | |
| Thread nominal diameter metric | 4 mm | |
| Thread | M4 | |
| Thread pitch | 0.7 mm | |
| Thread tolerance class | 6GX | |
| Chisel edge diameter | 3.57 mm | |
| Width across flats | 3.4 mm | |
| Length of tapping part | 13 mm | |
| Tap infeed length | 3.525 mm | |
| Taper lead angle | 9 degrees | |
| Number of teeth | 4 | |
| Twist direction | neutral, straight | |
| Twist angle | 0 degrees | |
| Taper lead form | C | |
| Pilot pin | without guiding pin | |
| Application for type of drilling | Through hole; Blind hole | |
| To depth (x diameter) | 1.5; 1.5 | |
| Number of clamping slots | 4 | |
| Core hole diameter | 3.7 mm | |
| Core hole diameter guideline value | 3.7 mm | |
| Flank angle | 60 degrees | |
| Square-drive width across flats | 3.4 mm | |
| Tool material | HSS-E-PM | |
| Machining group | P (steel) | |
| Cutting media, manufacturer’s designation | HSS-PM | |
| Coating | TiN | |
| Interface | joint 1 | |
| Gauge length | 64.785 mm | |
| Usable length | 6 mm | |
| Overall length | 63 mm | |
| Weight | 8 g | |
| Cutting direction | right-hand cutting | |
| Tool version | solid carbide | |
| Standard | DIN 2174 | |
| Data carriers | without data carrier | |
| Machining method | thread processing internal | |
| Colour ring | green | |
| Type of product | Fluteless tap |
Identification & Classification
| Article number | 2157726 | |
| Catalog number | 139143 | |
| EAN / GTIN | 4069515003391 | |
| Manufacturer number | 139143 M4 | |
| 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 2174 (≈ DIN 371 ≤ M10; ≈ DIN 376 ≥ M12).
Tolerance class: ISO 3X / 6GX = Oversize 0.02 − 0.04 mm.
HOLEX Pro Form: High-performance fluteless tap for use in a wide range of materials.
Tolerance class: ISO 3X / 6GX = Oversize 0.02 − 0.04 mm.
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 components which are galvanised after threading or which shrink slightly when hardened.