150mm NC Machine Reamer H7 Form B Right-Hand Spiral Fluted Cylindrical Shank HSS-Co, Tolerance H7 - TECWERK

Take advantage of the combination of HSS‑Co construction, H7 tolerance and spiral‑fluted geometry for stable, high‑precision reaming results; order the tool directly via Metav Werkzeuge or consult the advisors for application-specific recommendations.

NC machine reamer DIN 212‑3, Form B – Ø 6 mm, HSS‑Co (TECWERK)

The NC machine reamer DIN 212‑3 Form B Ø 6 mm HSS‑Co is a precision finishing tool designed for producing H7 bore tolerances in steel, ductile cast iron and non‑ferrous metals on CNC machines

• NC machine reamer in HSS‑Co with H7 tolerance
• Spiral‑fluted design with left‑hand helix
• Cylindrical shank and unequal flute spacing
• Suited for steel, GGG and non‑ferrous metals

Achieve consistent H7 bores with minimal rework

The reamer is engineered for precision finishing, delivering repeatable H7 tolerance bores when integrated into a controlled machining process. The HSS‑Co substrate provides a balance of hardness and toughness that supports sustained cutting at finishing feed rates, reducing the risk of chatter and excessive tool wear. When used with appropriate high‑accuracy toolholders, the cutter improves cycle reliability and minimises secondary operations, which supports a more efficient production flow and predictable part quality.

Flute geometry that stabilises chip evacuation and surface finish

The spiral‑fluted layout with a left‑hand helix and unequal flute spacing promotes smooth chip formation and evacuation even in interrupted or through‑hole conditions. The right‑cutting edge geometry ensures secure shearing action for clean wall finishes, while the unequal spacing helps to dampen harmonic vibrations. The result is a finer surface finish and reduced burr formation on both through and blind holes, lowering the need for subsequent deburring and inspection work.

Designed for machine integration and runout control

A cylindrical shank makes the reamer compatible with standard NC collets and shrink or hydro expansion chucks; the tool benefits markedly from high‑accuracy clamping to achieve the advertised concentricity. In conjunction with precision chucks, the cutter supports excellent runout accuracy, enhancing process stability in serial production. This characteristic is particularly valuable in tooling setups where interchangeability and reproducible results are required across multiple workpieces.

Broad applicability across common engineering materials

Optimised for finishing operations in steel, GGG (ductile cast iron) and a range of non‑ferrous metals, the tool suits general workshop and production environments needing reliable tolerance control. The cobalt‑alloyed high‑speed steel composition increases red hardness for elevated temperatures during finishing cuts, while preserving resistance to mechanical shock. This combination makes the reamer a practical choice for both routine maintenance and consistent manufacturing requirements on CNC platforms.

For reliable high‑precision reaming, contact Metav Werkzeuge to request the TECWERK NC machine reamer (SKU 2000865307NW) and to discuss the ideal toolholding and process parameters for the intended application.

Technical Data

• Article number: 2000865307NW
• Label: NC‑machine reamer DIN 212‑3 H7 Form B Ø 6 mm HSS‑Co TECWERK
• Packaging unit: 1

Facts

• Diameter: 6 mm
• Tolerance: H7
• Form: B
• Shank type: cylindrical

Special features

• Material: HSS‑Co (cobalt high‑speed steel)
• Right‑hand cutting
• Spiral‑fluted design
• Left‑hand helix
• Unequal flute spacing
• For through and blind holes
• Suitable for steel, GGG and non‑ferrous metals

FAQ

What size bore does the reamer produce and to what tolerance?
The TECWERK NC machine reamer with SKU 2000865307NW is specified at Ø 6 mm and is manufactured for H7 tolerance, providing a standardised fit for precision assemblies.

Can the reamer be used for both through holes and blind holes?
Yes, the spiral‑fluted geometry of this NC reamer is suitable for both through and blind holes, optimising chip evacuation and surface quality in either case.

Which materials are appropriate for this reamer?
The tool is intended for steel, GGG (ductile cast iron) and non‑ferrous metals, with the HSS‑Co composition offering thermal stability during finishing operations.

Is special toolholding required for best results?
To achieve the highest runout accuracy and process security, use the reamer with precision chucks such as hydro expansion, high‑accuracy collets or shrink fit holders; the cylindrical shank is compatible with these systems.

How does the spiral helix and unequal flute spacing benefit machining?
The spiral helix combined with unequal flute spacing reduces harmonic vibration and improves chip flow, which contributes to better surface finish and more consistent dimensional results.

Manufacturer/Responsible: NORDWEST Handel AG, Robert‑Schuman‑Straße 17, 44263 Dortmund