HSS Reamer with spiral flute

Technical Data:

• Material & Coating: High-Speed Steel (M2/M35) or carbon steel; M35 adds 5% cobalt for harder materials. Surface options include bright uncoated, TiN-coated, or black oxide to reduce friction.
• Key Dimensions: Diameter ranges 3mm–25mm (metric) or 1/8″–1″ (inch); overall length 80mm–200mm; flute length 30mm–80mm; spiral angle 15°–30° for chip flow.
• Structural Features: 4–6 spiral flutes; chamfered entry for alignment; precision-ground single cutting edges; square shank for clamping in hand reamer wrenches.
• Applicable Scope: Works with mild steel, alloy steel, aluminum, copper, cast iron, plastic, and wood. Designed for manual finishing of through holes or deep blind holes.

Advantages

1. High-Precision Finishing: Spiral flutes distribute cutting pressure evenly, producing holes with tight diameter tolerance and smooth surface finish (Ra ≤0.8μm).
2. Clog-Free Chip Removal: Spiral design guides chips away from the cutting zone, preventing workpiece surface damage and ensuring consistent cutting.
3. Easy Manual Use: Chamfered entry simplifies alignment with pre-drilled holes; square shank fits standard hand wrenches for controlled, comfortable operation.
4. Versatile & Durable: HSS material adapts to soft and hard materials; cobalt-enhanced M35 and coatings boost wear resistance, extending service life for repeated use.