0.0197" (0.50mm) Kyocera Chip Breaker PCB Router, 3mm LOC, Drill Point, Up-Cut, 1/8" Shank | R148

Kyocera 0.50mm (.0197") chip breaker PCB router bit with a 3mm (.118") length of cut, drill-point tip, up-cut spiral, and 1/8" shank. This precision solid carbide router is designed for fine slots, PCB profiling, and detailed routing in FR-4, G10, fiberglass, and other composite laminates.

The spiral chip breaker geometry features interrupted cutting edges that divide chips into smaller pieces during machining. This helps improve chip control and evacuation, particularly when routing rigid laminates and composite materials under suitable cutting conditions.

Chip Breaker Geometry and Up-Cut Design

• Chip breaker cutting edges: Help break up chips and reduce accumulation in the cutting area.
• Up-cut spiral: Directs chips upward and away from the cutting zone, helping maintain a clear cutting path.
• Drill-point tip: Provides a pointed entry geometry for applications requiring plunge entry when proper feeds, speeds, and support are used.
• Solid tungsten carbide: Provides rigidity and wear resistance when machining abrasive laminates.
• 0.50mm cutting diameter: Suitable for fine slots and detailed PCB routing where a larger cutter cannot be used.

Compared with diamond-flute routers, chip breaker tools use a more pronounced shearing and chip-breaking action. For delicate laminates where edge finish and delamination control are especially important, a diamond-flute tool may be preferable.

Compare Chip Breaker vs. Diamond Flute PCB Routers →

Typical Applications

• Printed circuit board (PCB) outline routing and fine slots
• FR-4 and G10 fiberglass laminates
• Phenolic and rigid composite materials
• Precision routing in thin fiberglass-reinforced sheets
• Detailed machining of abrasive composite materials

Carbon fiber applications: Uncoated carbide can be used for appropriate carbon-fiber routing operations, but its cutting edges may wear rapidly in highly abrasive material. For repeated production work, consider a suitable diamond-coated router with the required diameter and cutting geometry.

Explore Diamond-Coated Routers for Abrasive Composites →

Specifications

Feeds, Speeds and Tool Handling

For general chip breaker router machining guidance, review our Chip Breaker Router Feed & Speed Chart →

Important: The published chart begins at 0.80mm diameter and does not provide specific settings for this 0.50mm tool. Do not directly apply the chart's smallest-tool parameters to R148. Use appropriately calculated and tested settings for your spindle, material, and cutting conditions.

Due to its small cutting diameter, use rigid workholding, minimal tool runout, controlled entry, and conservative cutting engagement. Avoid excessive lateral loading and aggressive plunging.

Sold individually. Price is per router bit.