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Article code:
EAN / GTIN:
Manufacturer number:
Cat. No.:
Machine tap HSS-E-PM, TiAlN, NPT: 1/4-18
Article no.: 189081
Catalog no.: 138100
Article code:
Product details
Technical Data
| Through-coolant | no | |
| Cooling lubricant | yes | |
| Interface position | on the machine | |
| Holder type | plain shank | |
| Holder tolerance class | h9 | |
| Shank diameter DS | 11 mm | |
| Thread type | NPT | |
| Cutter diameter D | 13.616 mm | |
| Nominal diameter of thread (inches) D | 0.25 in | |
| Thread D | 1/4-18 NPT | |
| Thread pitch | 1.411 mm | |
| Turns per inch | 18 | |
| Taper lead angle | 12.81 degrees | |
| Number of teeth | 4 | |
| Twist angle | 15 degrees | |
| Taper ratio | 1:16 | |
| Type of thread-cutting tool | machine tap for conventional machining | |
| Taper lead form | C | |
| Application for type of drilling | through hole; blind hole | |
| Number of clamping slots | 4 | |
| Core hole diameter | 10.75 mm; 11.1 mm | |
| Tapping hole minimum depth | 17.5 mm | |
| Flank angle | 60 degrees | |
| Micrometer standard | yes | |
| Maximum check gauge diameter | 11.36 mm | |
| Check dimension tolerance | 0.05 | |
| Square-drive width across flats □ | 9 mm | |
| Tool material | HSS-E-PM | |
| Cutting media, manufacturer’s designation | HSS-E-PM TiAlN | |
| Coating | TiAlN | |
| Interface | joint 1 | |
| Overall length L | 100 mm | |
| Cutting direction | right-hand cutting | |
| Standard | Werksnorm | |
| Machining method | thread processing internal (EGI) | |
| Colour ring | red | |
| Type of product | taps |
Identification & Classification
| Article number | 189081 | |
| Catalog number | 138100 | |
| EAN / GTIN | 4045197080424 | |
| Manufacturer number | 138100 1/4-18 | |
| Manufacturer/responsible person | Hoffmann Supply Chain GmbH & Co. KG, Poststraße 15, 90471 Nürnberg, Germany, www.hoffmann-group.com |
Application Table
P
23
P
13
P
7
H
4
H
3
H
2
Description
Version:
For the highest performance demands. For use with emulsion (fat content minimum 8%).
Application:
Tapered pipe threads (NPT) to ANSI B1.20.1, for threads with sealants. See the table for the specified minimum size of the tapping hole.
Recommendation:
For TOOLOX and HARDOX materials we recommend deviating from the DIN data (see table) by drilling the tapping hole ⌀ 0.05 to 0.3 mm larger.
Tapping hole ⌀ A:
Pre-drill a plain hole without using a reamer.
Tapping hole ⌀ B:
Pre-drill a plain hole and then ream it using a 1:16 taper reamer (see No. 162650). The taper bore ⌀ can then be checked laterally by reference to the Dmax check dimension (see table). Variant B for drilling the tapping hole offers the best process reliability for the tapping operation.
Tapping hole ⌀ A:
Pre-drill a plain hole without using a reamer.
Tapping hole ⌀ B:
Pre-drill a plain hole and then ream it using a 1:16 taper reamer (see No. 162650). The taper bore ⌀ can then be checked laterally by reference to the Dmax check dimension (see table). Variant B for drilling the tapping hole offers the best process reliability for the tapping operation.