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Article code:
EAN / GTIN:
Manufacturer number:
Cat. No.:
HOLEX Pro Form fluteless machine tap without oil grooves 6GX, TiN, M: M8
Article no.: 2157660
Catalog no.: 139143
Article code:
Product details
Technical Data
| Through-coolant | no | |
| Entry of cooling lubricant | without cooling lubricant entry | |
| Escape of cooling lubricant | without cooling lubricant exit | |
| Wet maximum | suitable | |
| Interface position | on the machine | |
| Holder type | plain shank | |
| Interface coding | ZYL00802105 | |
| Holder shape | smooth shank with square drive | |
| Holder version | metric | |
| Holder size, metric | 8 mm | |
| Holder tolerance class | h9 | |
| Shank diameter DS | 8 mm | |
| Length of shank LS | 71 mm | |
| Oil | suitable | |
| Cooling lubricant | yes | |
| Series | Pro Form | |
| Manufacturer’s designation | HOLEX Pro Form Maschinen-Gewindeformer ohne Schmiernuten | |
| Thread type | M | |
| Nominal diameter of metric thread D | 8 mm | |
| Thread D | M8 | |
| Number of thread turns | 1 | |
| Thread pitch | 1.25 mm | |
| Thread tolerance class | ISO 3X 6GX | |
| Chisel edge diameter | 7.25 mm | |
| Length of tapping part Lc | 19 mm | |
| Tap infeed length | 6.445 mm | |
| Taper lead angle | 9 degrees | |
| Number of teeth | 5 | |
| Twist direction | neutral, straight | |
| Twist angle | 0 degrees | |
| Taper lead form | C | |
| Application for type of drilling | through hole; blind hole | |
| To depth (x diameter) | 1.5; 1.5 | |
| Number of clamping slots | 5 | |
| Core hole diameter | 7.45 mm | |
| Core hole diameter guideline value | 7.45 mm | |
| Flank angle | 60 degrees | |
| Reinforced shank | yes | |
| Square-drive width across flats □ | 6.2 mm | |
| Normlänge L | 90 mm | |
| Tool material | HSS-E-PM | |
| Machining group | M (stainless steel); N (non-ferrous metals); P (steel) | |
| Cutting media, manufacturer’s designation | HSS-PM | |
| Coating | TiN | |
| Interface | joint 1 | |
| Usable length L1 | 12 mm | |
| Overall length L | 93.625 mm | |
| Weight | 37 g | |
| Cutting direction | right-hand cutting | |
| Tool version | solid steel | |
| Standard | DIN 2174 | |
| Data carriers | without data carrier | |
| Machining method | thread processing internal (EGI) | |
| Colour ring | green | |
| Type of product | fluteless tap | |
| Content | single part |
Identification & Classification
| Article number | 2157660 | |
| Catalog number | 139143 | |
| EAN / GTIN | 4069515003421 | |
| Manufacturer number | 139143 M8 | |
| Article class | 12I | |
| 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.