14mm NC Machine Reamer H7 Form B Coated HSS-Co, Right-Hand Helix With Cylindrical Shank - TECWERK

Take advantage of a reamer that combines HSS-Co cutting geometry, DIN 212-3 conformity and H7 tolerance to deliver consistent fits and reduced rework; order directly via Metav Werkzeuge or consult the technical team for process integration.

NC machine reamer DIN 212-3 H7 Form B Ø14 mm HSS-Co by TECWERK — right-hand cutting, left-hand helix

NC machine reamer DIN 212-3 H7 Form B Ø14 mm HSS-Co is designed for precision finishing of through and blind holes on CNC equipment, providing consistent tolerances for series production and toolroom tasks

• HSS-Co cutting geometry for longevity and wear resistance
• DIN 212-3 conformity with H7 tolerance for precise fits
• Cylindrical shank suitable for high-accuracy chucks
• Unequal pitch and left-hand helix for stable cutting action

Consistent tolerances for reliable assembly

The combination of HSS-Co material and DIN 212-3 geometry ensures a stable cutting edge that preserves size and form across extended runs. With the H7 tolerance and Form B specification, the tool is intended to produce repeatable hole dimensions that reduce downstream adjustment and assembly time. When used with high-accuracy clamping systems, the result is markedly improved roundness and reduced scrap rates, contributing directly to throughput and cost-efficiency.

Optimised flute and helix design for smoother machining

The tool’s left-hand helix and unequal pitch reduce harmonic vibration and improve chip breaking during reaming operations. As a right-hand cutting reamer with a cylindrical shank, it is compatible with standard NC-machine holders and precision chucks; this delivers superior chip evacuation and a calmer cutting process. The outcome is a finer surface finish and lower risk of tool chatter, which benefits both single-part production and unattended batch runs.

Broad application across ferrous and non-ferrous materials

Specifically configured for finishing in steel, GGG (ductile iron) and various non-ferrous metals, this reamer supports both through and blind hole applications. Its design reduces the need for secondary operations by achieving the required fit in one pass, thereby shortening cycle times and improving shop-floor predictability. For mixed-material workpieces, the tool’s robustness ensures dimensional integrity even under varying cutting conditions.

Integration into production for maximum process security

Combining this reamer with hydro-expansion, shrink-fit or high-precision collets achieves the highest runout accuracy and process reliability. Proper clamping and coolant strategy extend tool life and maintain consistent hole quality over long series. Routine inspection and replacement of reamers at defined intervals will maintain product quality and protect downstream assembly processes, supporting the shop’s reputation for precision.

Contact Metav Werkzeuge for advice on clamping options and process integration or order the TECWERK NC machine reamer through Metav Werkzeuge to ensure reliable precision in production

Technical data

• Article number: 2000865315NW
• Item designation: NC machine reamer DIN 212-3, H7, Form B, Ø14 mm, HSS-Co, TECWERK

Facts

• Diameter: 14 mm
• Tolerance: H7
• Form: B
• Material: HSS-Co
• Standard: DIN 212-3
• Shank: Cylindrical
• Cutting direction: Right-hand
• Helix: Left-hand
• Pitch: Unequal
• Pack unit: 1

Special features

• Suitable for through and blind holes
• Application materials: steel, GGG (ductile iron), non-ferrous metals
• Designed for NC machine use
• Optimised for high runout accuracy when used with hydro-expansion, shrink-fit or precision collets

FAQ

What materials can this reamer process effectively?
The TECWERK NC machine reamer is specified for finishing in steel, GGG (ductile iron) and non-ferrous metals, providing consistent fits and surface quality for these materials.

Which machines and clamping systems are recommended?
For best results, pair the reamer with hydro-expansion, shrink-fit or high-accuracy chucks; these combinations enhance runout accuracy and process reliability for CNC operations.

How does the unequal pitch benefit machining performance?
Unequal pitch reduces resonant frequencies and vibration, leading to improved surface finish and longer tool life during reaming cycles.

Is the tolerance suitable for press fits or running fits?
With an H7 tolerance and DIN 212-3 geometry, the tool is optimised for precision fits typical in assembly applications; suitability for a specific fit should be confirmed against mating part tolerances.

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