5mm NC Machine Reamer H7 Form B HSS-Co Right-Hand Spiral Shank For Steel Cast Iron Non-Ferrous Metals - TECWERK

Take advantage of the HSS‑Co alloy and H7 tolerance to ensure high durability and precision in fit production; the left‑hand helix and cylindrical shank support reliable clamping and minimal runout when paired with hydro expansion or shrink‑fit holders. Order directly via Metav Werkzeuge or consult our specialists for process‑specific setup recommendations.

NC machine reamer DIN 212-3 H7 Form B Ø 5 mm — TECWERK

The NC machine reamer DIN 212-3 H7 Form B Ø 5 mm is a precision reamer designed for producing accurate H7 fits in steels, ductile iron and non‑ferrous metals on CNC equipment.

• HSS‑Co for extended tool life
• Tolerance H7 for precision fits
• Left‑hand helix, spiral flutes
• Cylindrical shank for secure clamping

Consistent precision for fit production

The combination of HSS‑Co material and the DIN 212‑3 specification ensures a balance of wear resistance and cutting performance. Manufactured to H7 tolerance, this reamer delivers consistent hole sizes that meet engineering fits without repeated adjustments. When used for through or blind bores, the geometry and unequal flute spacing reduce vibration and chip packing, which translates to fewer rejected parts and a steadier production rhythm. The reamer’s design therefore converts machine time into dependable output rather than rework.

Improved process reliability with appropriate clamping

Accuracy in reaming depends as much on clamping and runout control as on the tool itself. The cylindrical shank and the left‑hand helix are intended for use with precision holders; by pairing the tool with a hydro expansion chuck or high‑accuracy chuck, users achieve lower runout and enhanced process reliability. This stability permits tighter tolerances and repeatable results across batch runs, reducing stoppages and improving overall throughput on CNC machines.

Versatile application across common workshop materials

Engineered for both blind and through holes, the tool is suitable for machining steel, GGG (ductile iron) and a range of non‑ferrous metals. The right‑hand cutting action combined with helical flutes supports efficient chip evacuation and surface finish, making the reamer a practical choice for toolrooms and production lines that require a single tool to cover multiple material classes. Clear labelling of standards and form simplifies integration into existing tool libraries and inspection routines.

For application advice tailored to specific machines and clamping systems, contact Metav Werkzeuge for expert guidance on achieving optimal runout and repeatability — email info@metav-werkzeuge.com or call +49 2822 7131930.

Technical data

• Article number: 2000865306NW
• Label: NC machine reamer DIN 212-3 H7 Form B Ø 5 mm HSS‑Co TECWERK
• Packaging unit: 1

Measurements & tolerances

• Diameter: 5 mm
• Tolerance: H7
• Standard: DIN 212‑3
• Form: B

Features & applications

• Material: HSS‑Co
• Cutting direction: right‑hand cutting
• Helix: left‑hand helix
• Flutes: helical flutes, unequal spacing
• Shank: cylindrical shank
• Suitable for blind and through holes
• Applicable to steel, GGG and non‑ferrous metals
• Compatible with hydro expansion, high‑accuracy and shrink‑fit holders

FAQ

What materials can this reamer machine?
The NC machine reamer (TECWERK, SKU 2000865306NW) is suitable for steel, GGG (ductile iron) and a variety of non‑ferrous metals, making it versatile for mixed production environments.

Which tolerance does the tool achieve?
Manufactured to H7 tolerance under DIN 212‑3, the reamer provides the precision required for common engineering fits without additional honing.

Is this tool suitable for blind bores?
Yes, the reamer is designed for both blind and through holes; its flute geometry and unequal spacing help manage chips and maintain surface finish in blind bores.

What clamping methods are recommended for best accuracy?
Best runout and process reliability are achieved with precision holders such as hydro expansion chucks, high‑accuracy chucks or shrink‑fit systems when using this TECWERK reamer.

Does the tool require a special cutting direction or spiral type?
The tool features right‑hand cutting with a left‑hand helix and spiral flutes, optimised to improve chip evacuation and reduce vibration during reaming.

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