28mm Machine Reamer H7 Form B Spiral Fluted Left-Hand With Morse Taper For Steel GGG Non-Ferrous - TECWERK

Combining a carbide cutting geometry with a DIN-standard tolerance and a Morse taper shank, this tool delivers repeatable H7 hole finishes and secure mounting for medium-duty production. Take advantage of the tool’s spiral flutes and left-hand helix for improved chip control in steel and non‑ferrous alloys; order the machine reamer directly via Metav Werkzeuge or ask our consultants if needed.

Machine reamer DIN 8094 H7, Form B, Ø28 mm, carbide, MT3 — TECWERK

The Machine reamer DIN 8094 H7 Form B Ø28 mm is a precision finishing tool for producing accurate, H7‑tolerance holes in a range of ferrous and non‑ferrous materials

• Carbide construction for long tool life
• DIN 8094 Form B with H7 tolerance
• Spiral fluted geometry, left‑hand helix
• Morse taper MT3 shank for secure mounting

Achieve consistent H7 hole accuracy for reliable assemblies

The carbide finishing geometry and the specification to DIN 8094 ensure consistent hole diameters within H7 tolerance, which is essential where press‑fits or precise bearings are required. The tool’s right‑hand cutting action combined with spiral flutes reduces radial loads and supports smoother surface generation compared with conventional straight reamers. For production planners, this translates into fewer scrap parts, predictable assembly fits and reduced rework. The measured benefit is repeatability: the combination of Form B design and carbide cutting edges maintains dimensional stability over extended run lengths.

Secure mounting and improved chip evacuation for safer operation

A Morse taper MT3 shank provides a robust mechanical interface with many machine spindles and tailstock fittings, lowering runout and improving concentricity during reaming. The left‑hand helix of the spiral flutes promotes controlled chip flow back up the flutes, which helps when working with sticky or gummy alloys; chip removal is therefore more reliable and reduces the risk of scoring the bore. Technical teams unfamiliar with helix directions: left‑hand helix refers to the spiral direction of the flute and when combined with right‑hand cutting produces a defined chip curl away from the cutting zone. This design choice aids tool life and consistent surface finish.

Durable carbide cutting for mixed‑material workshop use

Manufactured from carbide, the tool resists abrasive wear and retains cutting geometry in contact with harder workpiece materials. The reamer is specified for use on steel, GGG (cast iron) and non‑ferrous metals, offering a versatile option for shops that process mixed batches. Carbide inserts a premium on initial tool cost but lowers total cost per hole through extended life and fewer tool changes. For operations that value uptime and predictable maintenance intervals, the tool’s construction reduces unplanned stoppages and supports steady throughput, contributing directly to improved shop floor efficiency and confidence in delivery promises.

For compatibility checks, delivery options or a short technical consultation on integration with existing machinery, contact Metav Werkzeuge in Emmerich — phone +49 2822 7131930 or email info@metav-werkzeuge.com to discuss this TECWERK MT3 carbide reamer and lead times.

Technical data

• Article number: 2000865785NW
• SKU / UID: 2000865785NW
• Brand: TECWERK
• Packaging unit: 1

Core specifications

• Diameter: Ø28 mm
• Tolerance class: H7
• Standard: DIN 8094

Special features

• Material: carbide (HM)
• Form: B
• Cutting direction: right‑hand cutting
• Flute type: spiral fluted, left‑hand helix
• Shank: Morse taper MT3
• Suitable for: steel, GGG (cast iron), non‑ferrous metals

FAQ

What level of dimensional accuracy can be expected from this reamer?
The TECWERK machine reamer to DIN 8094 is manufactured for H7 tolerance, providing the repeatable diameter control typically required for press and running fits.

Is the tool suitable for both cast iron and aluminium components?
Yes, the carbide geometry and spiral flute design make the reamer suitable for GGG (cast iron) and non‑ferrous metals such as aluminium, while maintaining finish quality.

How does the Morse taper MT3 shank affect setup?
The MT3 shank ensures secure seating in compatible spindles or tailstock adaptors, reducing runout and improving concentricity for consistent hole finishing with the TECWERK reamer.

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