Professional Turning with the KNUX Indexable Insert
The KNUX ... R/L11 indexable turning insert in grade RT250 is specifically developed for the demands of professional machining. With its robust shape and resilient substrate material, it is a dependable choice for roughing operations and medium machining tasks. The well-thought-out design, available in right-hand and left-hand execution, supports high flexibility during challenging turning processes in the industry.
Suitable materials

Technical data
- Insert shape: KNUX
- Grade: RT250 (CVD-coated P25-TiN hard metal)
- Machining type: Medium machining and roughing
- Cutting conditions: Continuous and light interrupted cuts
- Execution: Available as right-hand (R11) and left-hand (L11) version
- Corner radius (r): 0.5 mm (160405) or 1.0 mm (160410)
- Packaging unit: 10 pieces
Dimensions of KNUX Indexable Insert
|
Item Nr. |
r |
La |
brn |
L |
I.W |
S |
| KNUX 160405 L11 RT250 |
1771151 |
0,5 |
16 |
2,2 |
16,15 |
9,525 |
4,76 |
| KNUX 160405 R11 RT250 |
1771152 |
05 |
16 |
2,2 |
16,15 |
9,525 |
4,76 |
| KNUX 160410 L11 RT250 |
1771153 |
1 |
16 |
2,2 |
16,15 |
9,525 |
4,76 |
| KNUX 160410 R11 RT250 |
1771154 |
1 |
16 |
2,2 |
16,15 |
9,525 |
4,76 |
Cutting data
|
Steel |
|
Vc (m/min) |
fz (mm) |
| KNUX 1604.. RT250 |
120-220 |
0,1-0,3 |
Applications
This turning insert is primarily designed for industrial applications in steel machining. Thanks to its suitability for continuous and light interrupted cuts, it handles both uneven stock allowances and uniform material removal effectively. The variants with corner radii of 0.5 mm and 1.0 mm open up versatile application possibilities in form and longitudinal turning, as well as in classic roughing tasks for single and series production.
Due to the availability of right-hand and left-hand designs, the tool can be flexibly used in various tool holder systems for different machining directions. This adaptability supports efficient and smooth workflows in modern machining technology.
Special features
The performance of this insert relies on the hard metal substrate RT250, which is enhanced by a high-quality CVD coating of P25-TiN. This combination provides notable wear resistance and ensures reliable tool life during steel machining. The established KNUX base shape guarantees a stable seating in the tool holder and promotes a safe distribution of cutting forces.
The practical packaging unit of 10 pieces facilitates inventory management and ensures continuous machine availability on the shop floor. Furthermore, the clear distinction between right and left shapes encourages precise and targeted setup operations for every specific turning task.