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Plain shank thread mill, TiAlN, NPT: 1/8-27

Article no.: 139730 1/8-27

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NPT Unit price incl. VAT
  • Thread type: NPT
  • Flank angle: 60
  • Tool material: Solid carbide
  • Standard: ANSI B 1.20.1
  • Taper ratio: 1:16

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Product details

Technical Data

Thread size 1/8-27 NPT
Coating TiAlN
Thread type NPT
Flank angle 60 degrees
Tool material Solid carbide
Standard ANSI B 1.20.1
Taper ratio 1:16
Shank DIN 6535 HA with h6
Through-coolant yes
Application for type of drilling for blind holes; for through holes
Countersink angle 90 degrees
Thread pitch 0.941 mm
Threads per inch 27
Nominal ⌀ DC 8.16 mm
Shank length Ls 45 mm
Overall length L 70 mm
Shank ⌀ Ds 12 mm
Neck ⌀ D1 11.1 mm
Programming value for countersink Lc 10.4
No. of teeth Z 3
Feed fz in steel < 1100 N/mm2 0.04 mm
Shank tolerance h6
Number of clamping slots 3
Colour ring green
Internal/external application Internal
Hole ⌀ 8.16 mm
Thread depth 6 mm

Identification numbers & Classifications

Article number 139730 1/8-27
Manufacturer number 139730 1/8-27

Application Table

Alu plastics
N
220
Aluminium (short chipping)
N
220
Alu > 10% Si
N
170
Steel < 500 N/mm²
P
170
Steel < 750 N/mm²
P
150
Steel < 900 N/mm²
P
120
Steel < 1100 N/mm²
P
80
Steel < 1400 N/mm²
P
60
Steel < 55 HRC
H
35
INOX < 900 N/mm²
M
90
INOX > 900 N/mm²
M
70
Ti > 850 N/mm²
S
60
GG(G)
K
120
CuZn
N
180
Uni
 
wet maximum
 

Description

Version:

Corrected thread profile for milling exact internal threads (ensure stable clamping conditions).
Incorporating a countersink profile for a 90° countersink.

Advantage:

Countersinking and thread milling in one operation!

Application:

Tapered pipe threads (NPT) to ANSI B1.20.1, for threads with sealants.

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