4mm Machine Reamer DIN 8093 H7 Form B Right-Hand Helical Solid Carbide With Cylindrical Shank For Steel And Non-Ferrous Metals - TECWERK

Take advantage of H7 precision and solid-carbide construction for consistent hole finishes and long tool life; the combination of spiral-fluted geometry and a cylinder shank with h9 tolerance supports stable production. Order the machine reamer directly via Metav Werkzeuge or ask our consultants if needed.

Machine Reamer DIN 8093 H7 Form B Ø 4 mm VHM TECWERK — Solid-carbide machine reamer with H7 tolerance

The Machine Reamer DIN 8093 H7 Form B Ø 4 mm VHM TECWERK is designed for precision finishing of small bores in metals, offering standard-compliant tolerance and a robust shaft connection suitable for workshop and production environments.

• DIN 8093 reamer with H7 tolerance
• Solid carbide (VHM) with spiral flutes
• Cylinder shank, shaft tolerance h9 to Ø9 mm

Accurate hole tolerances for reliable assembly

This tool ensures consistent H7 hole quality in accordance with DIN 8093, reducing the need for manual rework and guaranteeing interchangeability where close fits are required. The standardised tolerance class permits predictable results for press or slip fits, which translates to fewer rejected parts and a more reliable production flow. Operators and purchasing managers will appreciate the traceable specification, which supports quality assurance procedures and incoming inspections.

Robust carbide geometry for extended service life

Constructed from solid carbide (VHM) and equipped with spiral flutes, the reamer combines wear resistance with effective chip control. The geometry—right-hand cutting with a left-hand helix and spiral-nuted flute—promotes orderly chip formation and evacuation, helping to maintain cutting edges under continuous use. A cylinder shank with shaft tolerance h9 up to Ø 9 mm ensures a secure clamping fit, which minimises runout and vibration, thereby extending tool life and improving hole finish in serial production.

Suitable for common engineering materials and precision tasks

The tool is prepared for finishing operations in steel, ductile cast iron (GGG) and non-ferrous metals, making it appropriate for a broad range of workshop applications such as bearing seats, dowel holes and precision bores in assemblies. While optimised for small-diameter work (Ø 4 mm), the combination of material choice and flute design supports stable performance in typical machinist set-ups. Clear material compatibility and standard compliance help with process planning and selection of feeds, speeds and coolant strategy in CNC or manual machines.

Contact Metav Werkzeuge today for availability and tailored technical advice on integrating this TECWERK reamer into the production process; Metav’s specialists in Emmerich are available at info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: 2000865744NW
• Description: Maschinenreibahle DIN 8093 H7 Form B D.4mm VHM TECWERK
• Manufacturer: TECWERK
• Packaging unit: 1
• UID: 2000865744NW

Core data

• Diameter: 4 mm
• Tolerance: H7
• Shaft tolerance: up to Ø 9 mm = h9

Design and features

• DIN 8093 · Form B
• Right-hand cutting
• Spiral fluted (drallgenutet) with left-hand helix
• Cylinder shank
• Solid carbide (VHM)
• Suitable for steel, GGG (ductile cast iron), non-ferrous metals
• For precision finishing of small bores

FAQ

What tolerance class does the reamer meet?
The reamer conforms to H7 tolerance according to DIN 8093, providing predictable hole fits for assembly and quality control.

Which materials can be machined with this reamer?
This TECWERK reamer is suitable for steel, ductile cast iron (GGG) and non-ferrous metals, as stated in the product specification.

Is the shank suitable for standard toolholders?
The tool features a cylinder shank with a shaft tolerance of h9 up to Ø 9 mm, designed for secure clamping in common collets and chucks.

What is the cutter material and why does it matter?
Made from solid carbide (VHM), the cutter offers high wear resistance and stability, which supports longer life and consistent hole quality in series production.

Does the reamer have special flute geometry?
Yes, the reamer is spiral fluted (drallgenutet) with a left-hand helix and right-hand cutting action to promote controlled chip evacuation and improved surface finish.

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