2-Flute PCD Step Reamer with 2 Chamfers (Large Diameter, With Shank)
The 2-Flute PCD Step Reamer with 2 Chamfers is engineered for large-diameter precision hole finishing where multi-step accuracy and integrated chamfering are critical. By combining step geometry with dual chamfer features, this tool enables the machining of stepped bores and entrance/exiting chamfers in a single pass, reducing tool changes and cycle time. Equipped with Polycrystalline Diamond (PCD) cutting edges, it delivers outstanding tool life, wear resistance, and bore quality when machining non-ferrous alloys, aluminum-based materials, and composites.
Applications
Precision finishing of large-diameter stepped bores with integrated chamfers
Automotive engine, transmission, and chassis components requiring accurate bore alignment
Aerospace structural elements and hydraulic manifolds with multi-feature bores
High-accuracy bore reaming in aluminum, copper alloys, magnesium alloys, and composites
Mass-production machining where step reaming and chamfering must be combined
Key Features
2-flute geometry optimized for stable performance in large-diameter applications
Integrated dual chamfers (45°, 60°, or custom) reduce secondary operations
PCD cutting edges provide exceptional wear resistance and long service life
High precision in concentricity, roundness, and cylindricity of bore finishing
Supplied with a cylindrical shank for rigid clamping and stable machining
Optional through-coolant design to improve chip evacuation and tool life
Benefits
Combines multi-step bore finishing and chamfering in one tool
Increases productivity by reducing tool changes and machining cycles
Achieves mirror-like surface finishes and IT6-level bore tolerances
Extends tool life compared to carbide or coated reamers
Ensures high process reliability for aerospace, automotive, and precision engineering industries
Fully adaptable to customer-specific bore drawings and CAD models
Technical Specifications
| Parameter | Specification (example) |
|---|---|
| Tool Type | PCD Step Reamer (large-diameter, dual chamfer) |
| Flutes | 2 |
| Chamfers | 2 (standard 45° / 60°, custom available) |
| Diameter Range | Ø10 – Ø50 mm (large bore applications) |
| Step Geometry | Dual-step with integrated chamfers |
| Shank Type | Cylindrical shank (HSK, BT, or custom optional) |
| Cutting Material | Polycrystalline Diamond (PCD) |
| Coolant Supply | Through-coolant optional |
| Tolerance | ≤ IT6 (custom tighter tolerances available) |
Options & Customization
Chamfer angle customization: 45°, 60°, 90°, or application-specific
Diameter ranges available beyond Ø50 mm for heavy-duty applications
Shank types: Cylindrical, HSK, BT, or modular arbor systems
Bore feature integration: taper sections, guiding lands, or countersinks
Coating, tolerance, and flute geometry tailored to customer requirements
Related Tools
6-Flute Adjustable PCD Reamer with Shank – High-Precision, Wear-Resistant Reaming
- PCD Step Reamers
- PCD Reamers with Shank
Contact
For detailed bore drawings, dimensional requirements, or custom reamer configurations, please contact:
[email protected]
Aoshiji® Custom Tool – Precision PCD and Custom CNC Tooling Solutions
