Highlights

ISCAR has changed the .472” (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.






(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
↓	↓	↓	↓	↓	↓	↓
MULTIMASTER Thread Mill	Cutting Dia.	No. of Flutes	Cutting Length	Pitch	Thread Profile ISO UN G (55°)	Connection Size

* For thread milling heads with .472” diameter and larger




• For thread milling heads with .472" diameter and larger use Torx clamping keys
• Do not apply lubricant to the threaded connection













• For thread milling heads with .472" diameter and larger use Torx clamping keys
• Do not apply lubricant to the threaded connection