PRODUCT DETAILS
The MQR Series solid carbide profiling and boring bars are engineered for complex internal contours, including tapered bores, radii transitions, and curved internal surfaces.
Internal profiling in small holes requires a tool that can navigate complex geometries while maintaining rigidity and surface finish. The MQR Series provides the versatility needed for shaping internal features, reducing tool changes, and ensuring a smooth, consistent profile in high-precision components across various industries.
Complex Contour Capability: Optimized for internal shaping, transitions, and radii in restricted spaces.
Reduced Tool Changes: Combines boring and profiling capabilities for more efficient machining cycles.
Consistent Surface Finish: High rigidity ensures smooth transitions and clean internal surfaces in complex bores.
High Precision Positioning: Maintains accurate contours and dimensional consistency in small-diameter holes.
Reliable Performance: Stable tool life even in demanding profiling and shaping applications.
The MQR series' rigid construction and optimized geometry maintain precise positioning for accurate shaping.
Our profiling bars suppress vibration to ensure smooth, precise internal surfaces and transitions.

| Model | F | L1 | S | R | D | L2 | Min Hole |
|---|---|---|---|---|---|---|---|
| MQR-2-R0.1-5L | 1.9 | 5 | 0.6 | 0.1 | 4 | 50 | 2.0 |
| MQR-2.5-R0.1-5L | 2.4 | 5 | 0.6 | 0.1 | 4 | 50 | 2.5 |
| MQR-3-R0.05-6L | 2.9 | 6 | 0.6 | 0.05 | 4 | 50 | 3.0 |
| MQR-3-R0.1-10L | 2.9 | 10 | 0.6 | 0.1 | 4 | 50 | 3.0 |
| MQR-3-R0.2-10L | 2.9 | 10 | 0.6 | 0.2 | 4 | 50 | 3.0 |
| MQR-4-R0.1-10L | 3.9 | 10 | 0.8 | 0.1 | 4 | 50 | 4.0 |
| MQR-4-R0.2-10L | 3.9 | 10 | 0.8 | 0.2 | 4 | 50 | 4.0 |
| MQR-5-R0.1-15L | 4.9 | 15 | 1.0 | 0.1 | 5 | 50 | 5.0 |
| MQR-5-R0.2-15L | 4.9 | 15 | 1.0 | 0.2 | 5 | 50 | 5.0 |
| MQR-6-R0.1-15L | 5.9 | 15 | 1.0 | 0.1 | 6 | 50 | 6.0 |
| MQR-6-R0.2-15L | 5.9 | 15 | 1.0 | 0.2 | 6 | 50 | 6.0 |
| MQR-7-R0.2-20L | 6.5 | 20 | 1.5 | 0.2 | 7 | 50 | 7.0 |
| MQR-8-R0.1-25L | 7.5 | 25 | 2.0 | 0.1 | 8 | 50 | 8.0 |
| MQR-8-R0.2-25L | 7.5 | 25 | 2.0 | 0.2 | 8 | 60 | 8.0 |
Custom lengths and coatings available upon request.
Explore more cutting tools from the same series or for similar applications
Micro Full Radius Grooving Tool
Internal groove machining
Mini 90° Turning
Technical insights and buying guides to help you choose the right cutting tools
Tell us your material, Product size and quantity. Our engineer will reply within 24 hours.
Contact our experts today for a free quote or technical consultation.