3mm Machine Reamer DIN 8093 Form B H7 Solid Carbide Right-Hand Spiral Flute Cylindrical Shank – TECWERK

Combining solid carbide construction, H7 tolerance and conformity to DIN 8093, this reamer delivers consistent finished holes for production use; secure the tool through Metav Werkzeuge or consult our specialists for technical guidance.

TECWERK machine reamer DIN 8093 H7, 3 mm, solid carbide (Form B)

The TECWERK machine reamer DIN 8093 H7 is a precision finishing tool for producing tight-tolerance holes in metalworking and assembly applications.

• DIN 8093 conformity
• H7 tolerance for repeatable fits
• Solid carbide construction VHM
• Left‑hand helix with right‑hand cutting

Achieve reliable H7 hole accuracy for assembly and fits

The tool is engineered to meet DIN 8093 standards and to produce H7 tolerance holes, which supports predictable fits for pins, bearings and dowels in serial production. The combination of a Form B geometry and the nominal 3 mm diameter means the reamer is suited to final sizing in precision assemblies. The H7 designation refers to the finished hole tolerance class; this ensures repeatable hole diameters within internationally recognised limits, reducing the need for subsequent corrective machining and improving first-pass yield.

High durability from a solid‑carbide design for consistent throughput

Manufactured from solid carbide (VHM), the reamer offers high edge retention and thermal stability compared with high‑speed steel alternatives. This material choice helps maintain cutting geometry across extended runs, resulting in consistent surface quality and fewer tool changes. The tool is suitable for machining steel, GGG (spheroidal cast iron) and non‑ferrous metals, supporting workshops that process mixed material batches. The robust construction supports reliable performance in repetitive finishing operations, lowering downtime and improving overall production efficiency.

Flute geometry and shank design that stabilise cutting action

The helical flutes with a left‑hand helix combined with right‑hand cutting optimise chip formation and evacuation, promoting a smoother cutting action and finer surface finish. The cylindrical shank provides straightforward mounting in standard toolholders, while the specified h9 shank tolerance (applicable in the series up to Ø 9 mm) ensures a secure fit and repeatable concentricity. These design elements reduce vibration and eccentricity during reaming, which translates into improved dimensional stability and longer tool life.

Practical integration into workshop workflows and tool sets

As a production-ready finishing tool, the reamer suits toolrooms and manufacturing lines where repeatability and conformity to standards matter. The Form B variant supports specific application demands where the reamer must meet defined geometry and runout characteristics; compatibility with common holders streamlines tool changeovers. Supplied as a single unit, the tool is appropriate for precise rework or incorporation into existing fixture setups, helping maintain a stable supply of certified-quality components across small-batch and larger runs.

For reliable H7 finishing from a reputable brand, contact Metav Werkzeuge to order the TECWERK machine reamer or to request tailored technical advice via info@metav-werkzeuge.com or by phone on +49 2822 7131930

Technical data

• Article number: 2000865742NW
• SKU / UID: 2000865742NW
• Manufacturer: TECWERK
• Packaging unit: 1

Key dimensions and tolerances

• Diameter: 3 mm
• Tolerance class (reamed hole): H7
• Shank tolerance: h9 (series up to Ø 9 mm)
• Applicable range reference: up to Ø 9.0 mm in the series

Features and materials

• DIN 8093 standard
• Form B geometry
• Solid carbide (VHM)
• Right‑hand cutting
• Helical flutes with left‑hand helix
• Cylindrical shank
• Suitable for steel, GGG (spheroidal cast iron), non‑ferrous metals

FAQ

What hole tolerance can be expected from this reamer?
The reamer is specified to produce H7 tolerance holes in accordance with DIN 8093; this results in repeatable finished diameters suitable for standard press or running fits where H7 is required.

Which materials is the tool suitable for?
The tool is made from solid carbide (VHM) and is suitable for finishing steel, GGG (spheroidal cast iron) and non‑ferrous metals as indicated in the product data.

How does the flute and helix geometry affect performance?
The helical flutes with a left‑hand helix and right‑hand cutting improve chip control and surface finish, reducing chatter and supporting stable reaming action in production environments.

Is the shank compatible with standard toolholders?
Yes; the reamer has a cylindrical shank with a specified shank tolerance of h9 (series up to Ø 9 mm), enabling secure mounting in common holders for accurate concentricity.

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