Toolex Taper Shank Reamer - HSS Spiral Flute Long Length (H5) - 20.76mm

The Toolex Taper Shank Reamer — 20.76 mm nominal size — is an intermediate-precision HSS reamer designed for deep-hole finishing in metal. Its long-series taper shank provides stable seating, while the left-hand spiral flute and right-hand cutting deliver controlled material removal and smooth chip flow for cleaner, more consistent holes.

Manufactured to BS 328/4 standards by Toolex Ltd, this reamer is supplied as a precision tool with ISO H5 tolerance. It is made to order, so please allow 24/48 hours for despatch. Note that listings marked “in stock” refer to blanks awaiting final finishing into the completed reamer.

• Taper Shank for Stable Seating: Ensures reliable alignment in compatible holders and collets, delivering repeatable reaming results with reduced runout.
• Left-Hand Spiral Flute with Right-Hand Cutting: Promotes efficient chip evacuation and controlled material removal for a smoother, cleaner hole finish.
• ISO H5 Tolerance with M2 HSS: Delivers consistent hole sizes and good wear resistance, supporting longer tool life and dependable performance in demanding machining tasks.

This combination of stability, precision and durable materials helps you achieve repeatable, high-quality hole finishes across multiple parts and setups. The tapered seating reduces rework and downtime, while the HSS alloy and tight ISO tolerance translate to longer tool life and reliable performance in demanding workshops and production environments.