0.1181" (3.00mm) × .600" LOC Diamond Flute PCB Router, Square End, 1/8" Shank | R143

3.00mm Diamond-Flute PCB Router | .600" LOC | Square End | Up-Cut

The R143 solid carbide diamond-flute router features a 0.1181" (3.00mm nominal) cutting diameter, 0.600" (15.24mm) length of cut, 1.500" overall length, and standard 1/8" (3.175mm) shank. Its extended cutting length makes it suitable for routing thicker fiberglass laminates, composite panels, and other abrasive materials requiring additional cutting reach.

The diamond-pattern cutting geometry uses numerous small, intersecting cutting edges for controlled material removal. Combined with an up-cut configuration and square-end cutting profile, R143 is intended for CNC profiling, slotting, trimming, and contour routing in suitable composite materials.

Key Features

• 0.1181" (3.00mm) cutting diameter: Suitable for PCB profiles, contours, slots, and composite machining
• 0.600" (15.24mm) LOC: Extended cutting reach for thicker laminates and composite panels
• Diamond-flute geometry: Multiple intersecting cutting edges help control fraying, fiber pull-out, and chipping under appropriate machining conditions
• Square-end configuration: Suited to profiling, trimming, and slotting operations requiring a square-ended router
• Up-cut geometry: Helps direct chips and routing debris upward during cutting
• Solid carbide construction: Provides rigidity and resistance to abrasive wear
• 1/8" shank: Fits compatible precision CNC spindle collets and tool holders

Diamond-Flute Geometry & Square End

Diamond-flute routers, also called diamond-cut or diamond-pattern routers, feature numerous fine, intersecting cutting edges rather than conventional continuous spiral flutes. This cutting pattern is commonly used for machining abrasive and layered materials such as FR4 printed circuit boards, G10 fiberglass laminates, phenolic materials, and reinforced composites.

The square-end geometry makes R143 useful for profile cutting, edge trimming, and slotting. Unlike a drill-point or fishtail router, it has a square-ended cutting profile. Select an appropriate entry method based on the tool's end-cutting capability and the material being machined.

The up-cut configuration helps carry routing debris toward the upper surface of the workpiece. Proper cutting conditions and secure workholding are important for controlling edge quality and tool loading.

Extended 0.600" Cutting Length

R143 provides 0.600" (15.24mm) of cutting length, offering additional reach for suitable thicker fiberglass laminates and composite panels.

Compared with shorter routers of the same diameter, an extended cutting section can be more susceptible to deflection and side loading. Use only the cutting engagement needed for the workpiece, select appropriate cutting depths, and avoid excessive side pressure.

Material note: Diamond-flute describes the cutting-edge geometry. This router is solid carbide and is not identified as diamond-coated or PCD tooling.

Typical Applications

• PCB board outlines, edge routing, and depaneling
• FR4 and G10 fiberglass laminate routing
• Thicker fiberglass and epoxy laminate sheets
• Phenolic laminate profiling
• Fiberglass-reinforced composite trimming
• Carbon-fiber composite machining where uncoated carbide tooling is appropriate
• Precision CNC slotting, contouring, and prototype fabrication

Technical Specifications

Feeds & Speeds

Correct spindle speed, feed rate, depth of cut, and secure workholding are important when machining abrasive PCB laminates and composite materials, especially with extended cutting-length routers.

View Diamond-Flute Router Feed & Speed Chart for general starting recommendations for FR4, G10, fiberglass, and related materials.

Recommended parameters are starting points only. Adjust for the material, spindle capability, machine rigidity, tool condition, and cutting engagement. Use appropriate dust extraction when machining fiberglass or carbon fiber.

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