Slim MT
A family of indexable Mill-Thread inserts and tool holders that include multiple straight flutes. These tools are well-suited for machining long threads (from small to large diameters).
Features:
- The advanced carbide and coating combination used provides an extended tool life and improved productivity
- Unique clamping mechanism for reliable clamping
- Wide range of inserts for most common thread profiles
Our range of Slim MT tools consists of the following lines:

THREADING INSERTS
These threading inserts are available in two different lengths (26 mm and 40 mm). Depending on the length – they can handle pitches from 0.5 mm / 20 TPI to 3.0 mm / 8 TPI.
Features:
- The inserts are double sided, i.e. have two cutting edges (except for BSPT / NPT / NPTF)
- The inserts for Whitworth / BSPT / NPT / NPTF thread profiles can be used for both internal and external threads
Carbide Grade(s):

TOOL HOLDERS
Tool holders for inserts from the Slim MT family. The holders in this line of products are only compatible with inserts designed to machine parallel threads (ISO / UN / Whitworth). Each tool holder supports multiple (2-4) inserts.
Features:
- Internal coolant bore
- Nickel coating for high wear resistance
Notes:
- The tool holders SR17- … -SL26-2 and SR067- … -SL26-2 are incompatible with the following inserts: SL26 I 3.0 ISO / SL26 E 3.0 ISO / SL26 I 9 UN / SL26 I 8 UN

TOOL HOLDERS FOR CONICAL THREADS
Tool holders for conical inserts from the Slim MT family, compatible only with inserts designed to machine conical threads (BSPT / NPT / NPTF). Each tool holder supports multiple (2-4) inserts.
Features:
- Internal coolant bore
- Nickel coating for high wear resistance
Notes:
- The tool holders SRT17-27-SL26-2, SR T 067-075-106-SL26-2 and SR T 067-106-SL26-2 can’t be used with the following inserts: SL 26 – 11.5 NPT / SL 26 – 11.5 NPTF / SL 26 – 11 BSPT

CARBIDE SHANK TOOL HOLDERS
A line of holders that uses a carbide shank-based design. Each tool holder holds 2-3 inserts.
Features:
- Internal coolant bore
- Nickel coating for high wear resistance

SHELL MILL TOOL HOLDERS
Shell mill-type holders, each using 5 or 6 inserts.
Features:
- Internal coolant bore
- Nickel coating for high wear resistance