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Article code:
EAN / GTIN:
Manufacturer number:
GARANT Master TM plain shank thread mill with countersink 2×D, AlTiN, UNF: 1/4-28
Article no.: 139738 1/4-28
Article code:
- Thread type: UNF; UNF-LH
- Flank angle: 60
- Tool material: Solid carbide
- Shank: DIN 6535 HA to h6
- Through-coolant: yes
Product details
Technical Data
| Series | Master TM | |
| Thread size | 1/4-28 UNF | |
| Coating | AlTiN | |
| Thread type | UNF; UNF-LH | |
| Flank angle | 60 degrees | |
| Tool material | Solid carbide | |
| Shank | DIN 6535 HA to h6 | |
| Through-coolant | yes | |
| Cutting direction | right-hand | |
| Thread pitch | 0.907 mm | |
| Threads per inch | 28 | |
| Nominal ⌀ DC | 5.1 mm | |
| Flute length Lc | 13.12 mm | |
| Shank length Ls | 41.4 mm | |
| Overall length L | 68 mm | |
| Shank ⌀ Ds | 8 mm | |
| Neck ⌀ D1 | 7 mm | |
| Programming value for countersink L1 | 14 mm | |
| No. of teeth Z | 4 | |
| Feed fz in steel < 750 N/mm2 | 0.05 mm | |
| Application for type of drilling | up to 2×D for blind holes; up to 2×D for through holes | |
| Spacing of the cutters | unequal spacing | |
| Countersink angle | 90 degrees | |
| Thread ⌀ | 6.35 mm | |
| Shank tolerance | h6 | |
| Number of clamping slots | 4 | |
| Colour ring | green | |
| Internal/external application | Internal | |
| Type of product | thread milling cutter | |
| Thread profile | Full profile |
Identification numbers & Classifications
| Article number | 139738 1/4-28 | |
| EAN / GTIN | 4067263129257 | |
| Manufacturer number | 139738 1/4-28 |
Application Table
N
220
N
220
N
180
P
140
P
130
P
120
P
90
P
80
H
45
H
85
H
50
M
82
M
75
S
50
K
120
N
200
Description
Version:
Solid carbide thread milling cutters with irregular cutting edge spacing and an increased number of cutting edges. Due to the irregular cutting edge spacing they achieve very smooth running and long tool life.
Newly developed universal geometry and high-performance coating for use across a wide spectrum of materials.
Newly developed universal geometry and high-performance coating for use across a wide spectrum of materials.
- Significantly reduced vibration due to irregular cutting edge spacing.
- Corrected thread profile for avoidance of profile distortions.
- Increased number of cutting edges.
- The latest generation of AlTiN-based HiPIMS coating.
- increased number of cutting edges
- new coating for optimum wear resistance
Advantage:
Incorporating a countersink profile for a 90° countersink and thread milling in a single operation.
Application:
For UNF unified fine threads ASME-B1.1.