MULTI-MASTER TRF Heads

Highlights


MULTI-MASTER threading heads feature a partial thread profile of 60° and 55°, which enables high reliability and high dimensional repeatability for high-efficiency thread milling.

Due to the partial profile, the heads are suitable for a wide range of thread pitches.
The single tip head enables a reduction in cutting forces while threading long threads.

The TORX socket clamps the head with ISCAR keys that have exchangeable blades with TORX tips for more precise torque control. In addition, the socket enables the application of an adjustable torque wrench (3340289 TORQUE WRENCH 5-50Nm 9X12) as an option for controlled tightening of the heads.

The fully ground head with 5-6 flutes offers improved performance due to more flutes than the existing heads for high table feed machining.

The threads are available in diameters of 12–28 mm, and are made from the carbide grade IC908 - a hard substrate with excellent chipping resistance, combined with a TiAlN PVD coating.

IC908 carbide grade provides high wear and oxidation resistance and is recommended for a very wide range of material applications and machining conditions.

The heads can be mounted on a large variety of standard available MULTI-MASTER shanks.



MM TRF 55°
Interchangeable Solid Carbide Milling Heads for 55° Partial Profile Thread Milling • For ISO metric thread (ISO 68, DIN13, ANSI B 1.13M-1983) • Do not apply lubricant to the threaded connection.
(1) Number of flutes
(2) Threads per inch minimum
(3) Threads per inch maximum
(4) Smallest possible thread diameter
(5) Tightening torque



* Optional, should be ordered separately



MM TRF 60°
Interchangeable Solid Carbide Milling Heads for 60° Partial Profile Thread Milling • For ISO metric thread (ISO 68, DIN13, ANSI B 1.13M-1983) • Do not apply lubricant to the threaded connection.
(1) Number of flutes
(2) Thread pitch minimum (mm)-internal
(3) Thread pitch maximum (mm)-internal
(4) Thread pitch minimum (mm)-external
(5) Thread pitch maximum (mm)-external
(6) Threads per inch minimum-internal
(7) Threads per inch maximum-internal
(8) Threads per inch minimum-external
(9) Threads per inch maximum-external
(10) Smallest possible thread



* Optional, should be ordered separately



Remark:
It is important to follow the recommended clamping torque instructions. ISCAR offers its torque setting wrench as a standard item, so that the required clamping torque can easily be set according to the recommended clamping value. Please refer to NPA 29-2016.

Accessories

MM Adjustable Torque Keys
Adjustable Torque Handle and Keys for Secure and Accurate Tightening of MULTI-MASTER Milling Heads (1) MULTI-MASTER connection size
(2) Clamping torque Nxm



Adjustable Torque Handle with Interchangeable Wrenches
for Clamping MULTI-MASTER Milling Heads
The adjustable torque handle, interchangeable wrenches and Torx bits are optional and should be ordered separately.




Machining Data for MM TRD/TRF Inserts
* For cutters with long cutting flute, reduce feed rate by 40%.




* For cutters with long cutting flute, reduce feed rate by 40%.






The NPA 38 -2021's pdf file: View (PDF) or Download (ZIP)