Toolex Taper Shank Reamer - HSS Spiral Flute Long Length (H5) - 12.27mm

The Toolex Taper Shank Reamer is an intermediate-precision HSS (M2) tool designed for finishing internal bores with a taper shank interface. This long-length reamer supports deep-holes and extended reach in metalworking, delivering consistent, repeatable results.

With a 12.27 mm diameter, left-hand spiral flute and right-hand cutting, it provides a stable cutting action and clean hole finishes. The tool is manufactured to BS 328/4 standards and ground to ISO H5 tolerance for reliable compatibility with standard tooling. It is supplied by Toolex Ltd and made to order; despatch typically occurs within 24–48 hours. If an “in stock” status is shown, it relates to blanks ready to be machined into the finished reamer you need.

• Long-series taper shank design: Enables stable seating and deep-hole finishing in compatible machines for consistent, repeatable results.
• Left-hand spiral flute with right-hand cutting: Optimizes chip evacuation and promotes a smooth, controlled cut for cleaner metal holes.
• ISO H5 tolerance with BS 328/4 compliance: Delivers tight diameter control and reliable interchange with standard reaming setups, reducing rework.

This combination provides reliable performance across demanding drilling and finishing tasks, helps maintain precise hole sizes, and supports efficient workflows. The M2 high-speed steel construction offers durability for repeated use, while the long length accommodates deeper bores. Plan for a short lead time since the tool is made to order, and rely on standardized tolerances to achieve consistent results in your production or workshop environment.