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      Item no.: 138120

      Machine tap uncoated

      Brand: GARANT
      Flank angle 55
      Thread type Rc
      Norm DIN 2181
      Thread standard DIN EN 10226-2
      Application for type of drilling for blind holes and through holes
      Taper lead form C
      Tool material HSS E
      Taper ratio 1:16
      Type of threading tool Machine tap for conventional machining
      Cutting direction right-hand
      No price available

      Machine tap uncoated

      In stock

      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.

      Technical Data

      Coating
      uncoated 
      Taper ratio
      1:16 
      Thread standard
      DIN EN 10226-2 
      Type of threading tool
      Machine tap for conventional machining 
      Application for type of drilling
      for blind holes and through holes 
      Colour ring
      without 
      Taper lead form
      Thread type
      Rc 
      Flank angle
      55 degrees
      Tool material
      HSS E 
      Through-coolant
      no 
      Cutting direction
      right-hand 

      Application Table

      Alu plastics
      N
      9
      Aluminium (short chipping)
      N
      9
      Steel < 500 N/mm²
      P
      7
      Steel < 750 N/mm²
      P
      6
      Steel < 900 N/mm²
      P
      5
      GG(G)
      K
      5
      CuZn
      N
      9
      Uni
       
      Oil
       
      wet maximum