0.1250" (1/8") Kyocera Chip Breaker PCB Router, .472" LOC, Fish Tail, Up-Cut, 1/8" Shank | R172

This Kyocera 0.1250" (1/8") chip breaker carbide PCB router features a .472" (12.00mm) length of cut, fish-tail tip, up-cut spiral, 1/8" shank, and 1.50" overall length. Manufactured from solid tungsten carbide, it is designed for precision routing of FR-4, G10, fiberglass, phenolic laminates, and other rigid composite materials.

Part of Kyocera's Series 2300 Chipbreaker Updraft Router family, this tool uses interrupted cutting edges to break chips into smaller fragments, helping improve chip evacuation and reduce debris accumulation during routing.

Chip Breaker Geometry and Fish-Tail Tip

• Spiral chip breaker: Helps control chip formation and reduce clogging during cutting.
• Up-cut spiral: Directs chips upward and away from the cutting zone.
• Fish-tail tip: Provides end-cutting geometry for PCB profiling and through-cutting, helping minimize exit-side breakout with proper workpiece support.
• .472" LOC: Provides approximately 12mm of cutting length for board outlines, slots, and thicker composite materials.
• Solid tungsten carbide: Provides rigidity and wear resistance when machining abrasive laminates.

The fish-tail configuration is useful for PCB outline routing, depaneling, and through-cutting applications where edge quality matters. Rigid workholding, appropriate backing material, and controlled cutting engagement help minimize laminate damage.

Need a drill-point tip? Our R173 Kyocera Drill-Point Chip Breaker Router → offers the same diameter and cutting length with a drill-point tip for controlled entry operations.

Not sure which router geometry is right for your application? Compare Chip Breaker vs. Diamond Flute PCB Routers →

Typical Applications

• PCB outline routing and depaneling
• FR-4 and G10 fiberglass-reinforced laminates
• Phenolic laminate cutting
• Precision slots and internal PCB contours
• Through-cutting rigid fiberglass sheets
• Selected carbon fiber composite routing operations

Carbon fiber and highly abrasive materials: Prolonged machining of abrasive composites can accelerate wear on uncoated carbide. For demanding production applications, consider a compatible diamond-coated router.

Explore Diamond-Coated Routers →

Specifications

Feeds, Speeds and Tool Handling

See our Chip Breaker Router Feed & Speed Chart → for general machining guidance.

Adjust cutting parameters for the material, spindle runout, cutting engagement, and workholding. Avoid aggressive plunging and excessive lateral loading.

Sold individually. Price is per router bit.