Machine tap HSS-E TiAlN

Article no.: 138110
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  • Thread type: NPT
  • Flank angle: 60
  • Tool material: HSS E
  • Standard: DIN 374
  • Thread standard: ANSI B 1.20.1

Description

Version:

A special TiAlN coating for long tool life. Due to interrupted guide thread: reduced tapping torque and improved distribution of lubricant. 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:

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.

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