0.0669" (1.70mm) Kyocera Chip Breaker PCB Router, .360" LOC, Fish Tail, Up-Cut, 1/8" Shank | R163

This Kyocera 1.70mm (.0669") chip breaker carbide PCB router features a .360" (9.14mm) 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.

The spiral chip breaker geometry uses interrupted cutting edges to divide chips into smaller fragments. Combined with its up-cut spiral, this helps promote efficient chip evacuation during routing of abrasive PCB laminates.

Chip Breaker Geometry and Fish-Tail Tip

• Spiral chip breaker: Helps control chip formation and reduce debris accumulation.
• Up-cut spiral: Directs chips upward and away from the cutting zone.
• Fish-tail tip: Provides end-cutting geometry for PCB profiling and controlled through-cutting, helping minimize exit-side breakout with proper workpiece support.
• .360" LOC: Provides approximately 9.14mm of cutting length for board outlines, slots, and deeper composite routing applications.
• Solid carbide: Provides rigidity and wear resistance when machining abrasive laminates.

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

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

Typical Applications

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

Carbon fiber and highly abrasive materials: Extended cutting in abrasive composites can accelerate wear on uncoated carbide. For demanding production applications, consider a suitable 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 material, machine rigidity, spindle runout, and cutting engagement. Avoid aggressive plunging and excessive lateral loading.

Sold individually. Price is per router bit.