Combination PCD Reamer
At Sundi Cutting Tools, our Combination PCD Reamers are integrated tools that combine multiple machining steps and sizes in a single tool. With core advantages like process integration, extended tool life, ultra-precision, and high surface finish, these reamers are ideal for high-volume precision hole machining of non-ferrous metals and composite materials, especially in automotive, aerospace, and precision manufacturing industries.
Typical Applications:
Automotive: Machining engine cylinder heads and blocks, valve guide holes, transmission housing step holes, and aluminum die-cast structural components.
Aerospace: Precision machining of CFRP laminate structures, aluminum alloy frames, and hydraulic system precision holes.
Precision Manufacturing: Ideal for optical equipment, semiconductor components, and medical devices, where high-precision micro holes are critical.
Looking for an all-in-one, high-performance reaming solution?
Contact Sundi Cutting Tools today to learn more about our Combination PCD Reamers and how they can streamline your machining operations, enhancing efficiency and precision.
- High wear resistance
- Reduce the machine time
- Stable Performance
- Easy to use
The Features of Combination PCD Reamer
Process Integration for Increased Efficiency
This tool integrates drilling, boring, reaming, chamfering, and step hole machining into one tool. It reduces tool changes and positioning times, cutting cycle times by over 50% and reducing machine downtime and tool inventory costs.
Reduced BUE (Built-Up Edge) Formation
Particularly suited for aluminum, aluminum alloys, and other sticky materials, the tool minimizes BUE formation, ensuring a cleaner cutting process and extending tool life.
Ultra-Sharp Cutting Edges:
The cutting edges can be ground to sub-micron sharpness, ensuring stable dimension tolerances within 0.002mm-0.003mm, ideal for high-precision applications in engine components, valve bodies, and more.
Superior Surface Finish
Achieve excellent surface finishes, with roughness levels as low as Ra 0.2–0.4 μm, often eliminating the need for secondary processes like honing or polishing.
Special Blade Geometry for Composite Materials
The reamer features a unique dagger-shaped blade design to reduce delamination and fiber pull-out when machining CFRP (carbon fiber reinforced plastics), ensuring intact hole walls and improved material integrity.
Efficient Cooling and Chip Removal:
The tool is equipped with built-in coolant and chip removal channels along with guide pads, ensuring efficient chip evacuation, especially for through holes, blind holes, and deep holes. It supports wet machining, MQL (minimum quantity lubrication), and semi-dry cutting, allowing for smoother chip management.


