Article no.: 138120

Machine tap uncoated

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38 pieces in stock
Brand: GARANT
Thread type: Rc
Flank angle: 55 °
Tool material: HSS E
Standard: DIN 2181
Thread standard: DIN EN 10226-2
Taper lead form: C
Taper ratio: 1:16
Shank: Plain shank with h9
Application for type of drilling: for blind holes and through holes
Cutting direction: right-hand
Type of threading tool: Machine tap for conventional machining

Information

  • Thread type: Rc
  • Flank angle: 55 °
  • Tool material: HSS E
  • Standard: DIN 2181
  • Thread standard: DIN EN 10226-2

Description

Version:

The short shank overhangs less and hence is more stable.

Application:

For use as machine tap or for cleaning existing threads by hand. Tapered Whitworth pipe thread (BSPT) to ISO 7/1 and BS21, for joints with sealant in the thread. 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. Variant A can be used if there is no risk of sealing problems.
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 and at the same time ensures the most reliable seal in the thread.

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