12mm NC Machine Reamer H7 Form B HSS-Co Spiral Fluted Right-Hand Cylindrical Shank - TECWERK

Take advantage of the HSS‑Co construction and H7 tolerance to produce tight, consistent fits; the combination of spiral fluting with a cylindrical shank and left‑hand helix yields reliable cutting and compatibility with high‑precision holders. Order the tool directly via Metav Werkzeuge or contact the consultants for application advice.

NC-Maschinenreibahle DIN 212-3 H7 Form B D.12mm HSS-Co TECWERK — 12 mm CNC machine reamer, H7 tolerance

NC-Maschinenreibahle DIN 212-3 H7 Form B D.12mm HSS-Co TECWERK is a CNC reaming tool designed for producing precise fits in a wide range of ferrous and non‑ferrous materials

• High‑precision H7 tolerance reaming
• HSS‑Co for improved wear resistance
• Spiral fluted with left‑hand helix
• Cylindrical shank for secure clamping

Achieve precise fits with consistent tolerances

The reamer is built from HSS‑Co, ensuring a balance between toughness and hardness for extended service life under industrial conditions. Its H7 tolerance and 12 mm nominal size make it suitable for applications where interchangeability and tight fits are required. The tool’s geometry converts the cutting action into a stable finishing pass, reducing the need for secondary sizing operations and improving overall process throughput. This results in fewer rejects and a predictable production outcome.

Reliable cutting in demanding materials

Designed as a spiral‑fluted tool with left‑hand helix, the reamer removes chips efficiently and reduces the risk of built‑up edge when machining steel, ductile iron and non‑ferrous metals. The right‑hand cutting direction combined with the spiral flute promotes smooth evacuation of swarf even in blind holes, while the cylindrical shank provides straightforward mounting in standard toolholders. The construction supports durability under repeated cycles, offering longer tool life and fewer tool changes on the shop floor.

Integrates with high‑accuracy holding systems to reduce runout

Optimal process stability is achieved when the reamer is paired with high‑precision holders such as hydro expansion chucks, precision collets or shrink‑fit holders. This combination improves runout accuracy, which is essential for producing consistent internal diameters and achieving mating part requirements. Using these holding systems supports predictable tolerance control and enhances the efficiency of reaming operations in CNC environments, making it a suitable choice for both small series and production runs.

Contact Metav Werkzeuge for tailored application support on TECWERK CNC reamers and fast supply from Emmerich — eMail: info@metav-werkzeuge.com | Phone: +49 2822 7131930

Technical Data

• Article number: 2000865313NW
• Product: NC machine reamer DIN 212-3, Form B, D.12 mm
• Manufacturer: TECWERK
• Packaging unit: 1

Facts

• Diameter: 12 mm
• Tolerance: H7
• Form: B

Special features

• Material: HSS‑Co
• Right‑hand cutting
• Spiral fluted
• Left‑hand helix
• Cylindrical shank
• Unequal spacing
• For blind and through holes in steel, ductile iron and non‑ferrous metals
• Compatible with hydro expansion chucks, high‑precision collets and shrink‑fit holders
• DIN 212‑3 standard

FAQ

What materials can this CNC reamer machine on?
The TECWERK NC machine reamer is suitable for steel, ductile iron (GGG) and various non‑ferrous metals, as specified for both blind and through holes.

How does the left‑hand helix affect performance?
The left‑hand helix, combined with right‑hand cutting, improves chip evacuation and stabilises the cutting action, which supports consistent surface finish and dimensional control with this TECWERK reamer.

Which holding systems are recommended to achieve best runout accuracy?
For optimum runout accuracy, pair the reamer with hydro expansion chucks, precision collets or shrink‑fit holders; these systems enhance the process reliability for the NC reamer SKU 2000865313NW.

Is the tool suitable for automated CNC reaming processes?
Yes. The tool geometry and HSS‑Co construction make it suitable for automated CNC processes where repeatability and tolerance control are required.

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