Toolex Hand Reamer - Spiral Flute - Straight Shank - HSS - H5 - 12.38mm

Toolex Hand Reamer is a precision finishing tool designed to bring internal holes to a true, Repeatable 12.38 mm diameter. Ideal for engineers, machinists, tradespeople, and hobbyists, it delivers a clean bore with minimal finishing passes, helping you achieve consistent fits in metal components.

Made from intermediate HSS (M2) and built to the DIN 206-B specification with ISO H5 tolerance (D = ISO H5), this reamer features a left-hand spiral flute and right-hand cutting for efficient chip control and smooth bore finishes. The 12.38 mm size is ready to deliver repeatable results across a range of applications. Note: this product is manufactured to order; please allow 24–48 hours for despatch. If the listing shows “in stock,” that refers to blanks ready to be machined into your reamer.

• Exacting ISO H5 tolerance (D = H5): Ensures repeatable hole sizes so assemblies fit first time, reducing rework and delays.
• Durable M2 high-speed steel with efficient chip control: Long tool life and smoother cutting thanks to the sturdy HSS material, plus left-hand flute with right-hand cutting for easier chip evacuation.
• DIN 206-B compliant, straight shank: Reliable geometry and a universal shank design that fits standard hand reaming setups for quick, confident tooling.

This reamer is designed to improve workflow by delivering precise bores with fewer passes, enhancing hole concentricity, and supporting consistent performance across jobs. Its robust construction and standardised geometry help you plan workloads with confidence, while the made-to-order lead time ensures you receive a tool tailored to your exact size when you need it.