MKR Series Solid Carbide Full Radius Grooving Boring Bars | R-Groove & Circular Tools

Material: Ultra-fine grain tungsten carbide
Application: Full Radius Grooving
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

Precise Full Radius Grooving and Circular Internal Contours

The MKR Series solid carbide full radius grooving bars are specialized for machining R-grooves, circular recesses, and rounded internal features in high-precision components.

Machining a full radius groove requires a tool that can maintain a perfect R-profile while ensuring dimensional consistency and smooth surface finish. The MKR Series provides the rigidity and geometry needed for stable R-groove machining in small-diameter bores, helping manufacturers produce consistent, stress-free internal features in critical parts.

Why Professionals Choose the MKR Series:

Perfect R-Profile Control: Optimized geometry for clean, consistent full radius grooves and circular recesses.
Smooth Internal Contours: Ensures clean rounded internal features with excellent surface finish.
High Stability in Small Bores: Solid carbide body minimizes vibration in narrow R-groove applications.
Stress-Free Machining: Rounded profiles help reduce stress concentrations in functional components.
Reliable Dimensional Accuracy: Maintains tight tolerances for precise R-groove width and depth.

Solving Your R-Grooving Challenges

Problem: Difficulties in maintaining a consistent R-profile

The MKR series' precision-ground radius geometry ensures a clean, repeatable R-groove shape.

Problem: Chatter or poor finish in internal rounded features

Our full radius grooving bars suppress vibration to deliver smooth, high-quality R-profiles and transitions.

MKR Series Specifications

MKR Series Solid Carbide Micro Boring Bars Specifications

Model	F	S	L1	R	D	L2	Min Hole
MKR-4-R0.5-10L	4	1.0	10	0.5	4	50	4.1
MKR-4-R0.75-10L	4	1.0	10	0.75	4	50	4.1
MKR-5-R0.5-15L	5	1.0	15	0.5	5	50	5.1
MKR-5-R0.75-15L	5	1.5	15	0.75	5	50	5.1
MKR-6-R0.5-15L	6	1.5	15	0.5	6	50	6.1
MKR-6-R0.75-15L	6	1.5	15	0.75	6	50	6.1
MKR-6-R1.0-15L	6	1.5	15	1.0	6	50	6.1