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GARANT Master Form Steel fluteless machine tap with oil grooves HSS-E-PM, TiAlN, UNF: 1/2-20

Article no.: 139495 1/2-20

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UNF Unit price incl. VAT
  • Thread type: UNF
  • Flank angle: 60
  • Tool material: HSS E PM
  • Standard: DIN 2174
  • Tolerance class: 2BX

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Product details

Technical Data

Coating TiAlN
Thread type UNF
Flank angle 60 degrees
Tool material HSS E PM
Standard DIN 2174
Tolerance class 2BX
Taper lead form E
Shank Plain shank with h9
Through-coolant no
Application for type of drilling up to 3×D for blind holes; up to 3×D for through holes
Cutting direction right-hand
Thread pitch 1.27 mm
Threads per inch 20
Thread ⌀ 12.7 mm
Overall length L 100 mm
Shank ⌀ Ds 9 mm
Shank square □ 7 mm
Tapping hole ⌀ guide value 12.1 mm
Number of clamping slots 8
Number of cutting edges Z 8
Thread depth 36.21 mm
Series Master Form
Type of product Fluteless tap

Identification numbers & Classifications

Article number 139495 1/2-20
EAN / GTIN 4062406707224
Manufacturer number 139495 1/2-20

Application Table

Aluminium (short chipping)
N
38
Steel < 500 N/mm²
P
37
Steel < 750 N/mm²
P
35
Steel < 900 N/mm²
P
27
Steel < 1100 N/mm²
P
18
Steel < 1400 N/mm²
P
12
INOX < 900 N/mm²
M
12
INOX > 900 N/mm²
M
7
CuZn
N
22
Oil
 
wet maximum
 
wet minimum
 

Description

Version:

The latest generation of high-performance fluteless taps, specially developed for use in steel materials.
  • Optimised polygon geometry for a lower torque.
  • Multi-layer HIPIMS coating for high wear resistance.
  • HSS-E-PM substrate for exceptional process reliability.

DIN 2174 (≈ DIN 371 ≤ 3/8; ≈ DIN 376 ≥ 7/16).
Form E (lead-in 1.5 – 2 turns). For deep threads with short lead-in. The thread is tapped almost to the bottom of the hole.

Application:

For UNF unified fine threads ASME−B1.1.

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