MQR Series Solid Carbide Profiling Boring Bars | Versatile Internal Contour Tools

Material: Ultra-fine grain tungsten carbide
Application: 90° Face Boring
Packaging: Shock-proof plastic tubes & export cartons
Shipping: Fast air express (DHL/FedEx) in 5-7 days
OEM & Custom: Support for custom drawings & private labeling
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PRODUCT DETAILS

Versatile Internal Profiling and Shaping in Complex Small Bores

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.

Why Professionals Choose the MQR Series:

  • 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.

Solving Your Internal Profiling Challenges

Problem: Difficulties in maintaining complex internal contours

The MQR series' rigid construction and optimized geometry maintain precise positioning for accurate shaping.

Problem: Tool chatter or poor finish in tapered bores

Our profiling bars suppress vibration to ensure smooth, precise internal surfaces and transitions.

MQR Series Specifications

MQR Series Solid Carbide Micro Boring Bars Specifications

ModelFL1SRDL2Min Hole
MQR-2-R0.1-5L1.950.60.14502.0
MQR-2.5-R0.1-5L2.450.60.14502.5
MQR-3-R0.05-6L2.960.60.054503.0
MQR-3-R0.1-10L2.9100.60.14503.0
MQR-3-R0.2-10L2.9100.60.24503.0
MQR-4-R0.1-10L3.9100.80.14504.0
MQR-4-R0.2-10L3.9100.80.24504.0
MQR-5-R0.1-15L4.9151.00.15505.0
MQR-5-R0.2-15L4.9151.00.25505.0
MQR-6-R0.1-15L5.9151.00.16506.0
MQR-6-R0.2-15L5.9151.00.26506.0
MQR-7-R0.2-20L6.5201.50.27507.0
MQR-8-R0.1-25L7.5252.00.18508.0
MQR-8-R0.2-25L7.5252.00.28608.0

Custom lengths and coatings available upon request.

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