Toolex Taper Shank Reamer - HSS Spiral Flute Long Length (H5) - 20.34mm

The Toolex Taper Shank Reamer, 20.34 mm, is a long-length HSS reamer designed for precise finishing of deep holes. With a taper shank, left-hand spiral flute, and right-hand cutting, it delivers stable, controlled material removal in demanding machining tasks.

Manufactured to BS 328/4 and finished to ISO H5 tolerance, this reamer meets exacting size standards and offers reliable interchange with compatible tooling. Supplied by Toolex Ltd., it is made to order with a dispatch window of 24–48 hours.

• Long-length taper shank for reach and rigidity: Enables accurate finishing in deep bores with stable alignment and minimal deflection.
• Left-hand spiral flute with right-hand cutting: Provides smooth cutting and efficient chip flow for a clean, consistent hole finish.
• ISO H5 tolerance to BS 328/4 standard: Delivers precise hole sizes and reliable compatibility with standard machining setups.

Used in drilling and reaming workflows, this reamer helps you achieve precise hole sizes on the first pass, reducing rework and keeping your production schedule on track. The M2 high-speed steel construction balances hardness and toughness for durable performance across repeated use, while the tapered shank ensures firm toolholding for dependable results across demanding applications.