20mm Machine Reamer DIN 208 H7 Form B HSS-Co Right-Hand Helical Left-Hand Relief Morse Taper Shank - TECWERK

Take advantage of a high‑precision HSS‑Co cutting geometry and a Morse taper MK2 shank for secure mounting to ensure consistent hole tolerances and efficient production. Order directly via Metav Werkzeuge or consult the technical team for application-specific advice.

Machine reamer DIN 208 H7 Form B D 20 mm HSS‑Co MK2 TECWERK

The Machine reamer DIN 208 H7 Form B D 20 mm HSS‑Co MK2 TECWERK is a precision finishing tool designed for creating accurate H7 tolerance holes in steel, non‑ferrous metals and plastics.

• HSS‑Co for high wear resistance
• DIN 208 Form B geometry
• Tolerance H7 for precision fits
• MK2 Morse taper shank for secure mounting

Consistent precision for assembly fits and bearings

The cobalt‑alloy high‑speed steel (HSS‑Co) composition and tolerance H7 specification guarantee repeatable dimensional accuracy for press fits and bearing seats. As a machine reamer compliant with DIN 208, the tool provides a controlled cutting allowance and predictable runout, which reduces rework and minimises assembly rejects. The material choice extends tool life under tougher feeds and helps maintain surface quality over longer production runs.

Faster chip evacuation and improved surface finish

The spiral‑fluted geometry with a left‑hand helix combined with right‑hand cutting promotes steady chip flow away from the cutting edge, reducing clogging in blind holes and improving the surface finish. The Form B profile optimises the cutting engagement for both through and blind holes, while the Morse taper MK2 shank enables rigid spindle seating and quick tool changes on machines equipped for taper mounting. This combination supports higher effective machining rates and more consistent hole quality.

Versatile use across materials with clear handling benefits

Designed for steel, non‑ferrous metals and plastics, the reamer covers common workshop and production requirements for finishing operations. The tool is suitable for both through and blind holes, offering reliable results when finishing pre‑drilled or pre‑reamed bores. Proper coolant use and correct spindle alignment are recommended to preserve the reamer’s geometry and achieve the intended H7 tolerance throughout its service life. For cost‑effective long‑term use, controlled feeds and periodic inspection of the cutting edges will maintain performance and surface integrity.

For precise finishing needs, rely on TECWERK quality supplied through Metav Werkzeuge — contact the Metav technical advisors for application guidance and guaranteed delivery from Emmerich.

Technical Data

• Article number: 2000865765NW
• Item name: Machine reamer DIN 208 H7 Form B D 20 mm HSS‑Co MK2 TECWERK
• Manufacturer: TECWERK
• Packaging unit: 1
• UID: 2000865765NW

Facts

• Diameter: 20 mm
• Tolerance: H7
• Standard: DIN 208
• Shank: MK2 (Morse taper)
• Cutting direction: right‑hand
• Helix: left‑hand

Special features

• Material: HSS‑Co (cobalt high‑speed steel)
• Flute type: spiral‑fluted
• Form: B
• Application: finishing for through and blind holes
• Suitable for: steel, non‑ferrous metals, plastics

FAQ

What hole tolerance can be expected from this reamer?
The Machine reamer DIN 208 H7 Form B D 20 mm HSS‑Co MK2 TECWERK is specified to produce H7 tolerance fits when used with correct pilot size and machine alignment.

Is the shank compatible with standard taper spindles?
Yes, the MK2 Morse taper shank on the TECWERK machine reamer fits standard MK2 taper sockets for rigid seating.

Which materials are suitable for machining with this reamer?
This TECWERK reamer is intended for steel, non‑ferrous metals and plastics, as noted in the product data.

Can this tool be used for both blind and through holes?
The DIN 208 Form B geometry of the Machine reamer D 20 mm HSS‑Co MK2 TECWERK is suitable for finishing both through and blind bores.

How does the spiral flute design affect performance?
The spiral‑fluted, left‑hand helix combined with right‑hand cutting on the TECWERK reamer improves chip evacuation and helps achieve a cleaner surface finish, especially in blind holes.

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