THREAD MILLING
NPA 30/2017
Thread Milling Heads with the MULTI-MASTER Connection
Highlights
ISCAR has modified most of the thread milling heads with the MULTI-MASTER connection to increase application and efficiency options. New milling heads have been added for the production of wider thread options.
ISCAR has changed the 12 mm and larger diameter thread milling head clamping method
by replacing the clamping flats with a Torx cavity on the frontal face. The Torx key reliably secures
the MULTI-MASTER thread milling heads and reduces the risk of overtightening.
New
Former
(1) Order separately
In many cases the frontal clamping method is more convenient for the machine operator. Frontal
clamping enables the production of a shorter head, to reduce the overhang of the milling head
from the shank. This substantially increases the MULTI-MASTER tool’s stiffness, reducing vibration
potential and increasing productivity.
The Torx clamping design contributes both to performance and maintenance. The MULTI-MASTER
thread milling heads can be used on any of the large variety MULTI-MASTER steel, carbide and
heavy metal shanks with the proper thread connection size.
Another advantage is that the thread milling head can be replaced on the machine without having
to set-up the edge location, substantially saving time.
The following three thread milling heads have been modified:
MT-W-MM
MT-ISO-MM
MT-UN-MM
Attached is a list of current thread milling heads and the new items that will replace them once their stock is depleted.
Current Items | New Items |
5605514 | MT 12D8 16UN-MMT06 908 | 3315744 | MT12D10 16UN-MMTT06 908 |
5605517 | MT 15D12 10UN-MMT08 908 | 3311810 | MT15D13 10UN-MMTT08 908 |
5667187 | MT 16C12 8UN-MMT08 908 | 3311813 | MT16C12 8UN-MMTT08 908 |
5605518 | MT 16C11 9UN-MMT08 908 | 3311812 | MT16C11 9UN-MMTT08 908 |
5605516 | MT 16E12 12UN-MMT08 908 | 3311816 | MT16E13 12UN-MMTT08 908 |
5605515 | MT 16E12 14UN-MMT08 908 | 3311817 | MT16E13 14UN-MMTT08 908 |
5605505 | MT 12D7 1.5ISO-MMT06 908 | 3301659 | MT12D9 1.5ISO-MMTT06 908 |
5605507 | MT 12D8 2.0ISO-MMT06 908 | 3301660 | MT12D10 2.0ISO-MMTT06 908 |
5605506 | MT 16F12 1.5ISO-MMT08 908 | 3311819 | MT16F12 1.5ISO-MMTT08 908 |
5605508 | MT 16E12 2.0ISO-MMT08 908 | 3311818 | MT16E12 2.0ISO-MMTT08 908 |
5605509 | MT 15E12 2.5ISO-MMT08 908 | 3311811 | MT15E13 2.5ISO-MMTT08 908 |
5605510 | MT 16C12 3.0ISO-MMT08 908 | 3305422 | MT16C12 3.0ISO-MMTT08 908 |
| | | |
5605521 | MT 16D11 11W-MMT08 908 | 3311814 MT16D11 | 11W-MMTT08 908 |
5605520 | MT 16D12 14W-MMT08 908 | 3311815 MT16D12 | 14W-MMTT08 908 |
Note: It is important to follow the recommended clamping torque instructions as uncontrolled clamping torque can sometimes cause performance problems on MULTI-MASTER heads.
Over-tightening can cause MM thread breakage, while insufficient clamping torque can cause vibrations, drastically reducing tool life and part accuracy.
ISCAR offers the means to actually control the recommended clamping torque setting. The required clamping torque can easily be set on a handle with a scale window that displays the set torque value. For further information, please refer to NPA 29-2016.
Identification Code
MT |
10 |
D |
6 |
0.75 |
ISO |
MMT05/MMTT..* |
↓ |
↓ |
↓ |
↓ |
↓ |
↓ |
↓ |
MULTIMASTER Thread Mill |
Cutting Dia. |
No. of Flutes |
Cutting Length |
Pitch |
Thread Profile ISO UN G (55°) |
Connection Size |
* For thread milling heads with 12mm diameter and larger
MT-W-MM
Carbide Milling Heads with a Threaded Connection,
for Internal and External 55° BSW Thread Profile
• For thread milling heads with 12mm diameter and larger use Torx clamping keys
• Do not apply lubricant to the threaded connection
MT-ISO-MM
Carbide Milling Heads with a Threaded Connection for Internal ISO Metric Thread
MT-UN-MM
Carbide Milling Heads with a Threaded Connection for Internal UN Thread Profile
• For thread milling heads with 12mm diameter and larger use Torx clamping keys
• Do not apply lubricant to the threaded connection