Indexable reamers are precision hole-finishing tools for metalworking, featuring replaceable carbide inserts (no regrinding needed) and modular designs. They deliver high accuracy, efficiency, and cost-effectiveness in mass production, replacing traditional solid reamers for medium-to-large batch machining. Our reamers are engineered with advanced insert clamping, internal coolant systems, and wear-resistant coatings to meet strict tolerance and surface finish requirements.
| Item | Details |
| Reaming Diameter Range | 8 mm–140.6 mm (0.315"–5.535") (customizable for smaller/larger sizes) |
| Insert Material | Tungsten Carbide (Grade: YG8/YG10/YG13; or Cermet P10R for high-speed machining) |
| Insert Coating | TiAlN/TiCN/TiN (PVD coating; reduces friction, enhances wear resistance) |
| Hole Tolerance | Up to H7 (or IT5 for precision models like Index H-Ream) |
| Surface Finish | Ra 0.8–1.6 μm (polished insert: Ra 0.4 μm) |
| Cutting Geometry | - Straight Flute: Blind holes- Helical Flute: Through holes/thin-walled parts |
| Tool Length | 3×D / 5×D / 7×D (D = reaming diameter) |
| Shank Type | HSK/BT/CAT/Cylindrical (modular, compatible with CNC machine spindles) |
| Coolant Supply | Internal through-tool coolant (directed to each cutting edge) |
| Repeatability | ≤3 μm radial runout (modular head interface) |
| Certifications | ISO 9001, CE |
• Cost-Effective Insert System: Replaceable carbide inserts (2–4 cutting edges) eliminate regrinding costs; 80% lower tooling cost vs. solid reamers.
• Ultra-High Precision: Modular head withHSK double-cone interface ensures ≤3 μm radial runout, achieving H7 hole tolerance and Ra 0.8 μm surface finish.
• High Efficiency: Max feed rate up to7500 mm/min (SumiReamer SR series); multiple cutting edges reduce cycle time by 30% vs. single-edge tools.
• Versatile Geometry: Straight/helical flutes for blind/through holes; adjustable diameter (±0.1 mm) for flexible hole sizing.
• Extended Tool Life: PVD-coated carbide inserts + internal coolant reduce heat/wear; 2× longer life than uncoated tools.
• Easy Operation: Tool-free insert clamping (1/4-turn hex wrench) reduces setup time by 60%; modular design allows quick head/shank replacement.
Our indexable reamers are widely used in:
• Automotive Manufacturing: Reaming engine blocks (cylinder bores), crankshafts, gearboxes, and brake components (materials: steel, cast iron, aluminum alloy).
• Aerospace Industry: Finishing precision holes in turbine blades, aircraft structural parts (titanium alloy, stainless steel).
• Mold & Die Making: Reaming cooling channels and positioning holes in mold steel (P20, H13, S136).
• General Machinery: Machining hydraulic cylinders, valve bodies, and bearing seats (materials: brass, copper, non-ferrous metals).
• Energy Equipment: Finishing holes in pump components, turbine casings (high-strength steel, nickel-based alloys).
• Premium Materials: Imported carbide inserts (Germany/Japan) + heat-treated alloy steel shanks (42CrMo) ensure stability.
• Custom Solutions: Tailored diameter, flute geometry, and coating for specific materials (e.g., TiAlN for steel, diamond coating for non-ferrous metals).
• After-Sales Support: Free sample testing + 12-month warranty for insert quality.
• Industry Compliance: Meets ISO 9001 and aerospace/automotive quality standards (e.g., IATF 16949).