Toolex Taper Shank Reamer - HSS Spiral Flute Long Length (H5) - 20.50mm

The Toolex Taper Shank Reamer is an intermediate-precision HSS reamer (M2) designed to finish tapered bores with high accuracy. Supplied by Toolex Ltd, it uses a BS 328/4 taper shank for secure toolholding and long-length reach, making it ideal for both workshops and production environments. The 20.50 mm diameter is ground to ISO H5 tolerance to deliver consistent results across jobs.

The reamer features a left-hand spiral flute with right-hand cutting for predictable cutting action and efficient chip clearance. Its long length provides excellent access to deep or hard-to-reach bores, while the HSS (M2) core delivers durability for repeating production runs. This item is manufactured to order; please allow 24–48 hours for despatch.

• BS 328/4 taper shank compatibility: Secure, repeatable toolholding in compatible holders reduces runout and improves bore accuracy.
• Long-length HSS M2 with left-hand spiral flute: Extended reach plus efficient chip evacuation give smooth, controlled cutting in deep or challenging bores.
• ISO H5 tolerance on a 20.50 mm diameter: Ensures precise, repeatable finished sizes across production runs for reliable fits.

This reamer helps you achieve consistent bore finishes with dependable tool performance, improving workflow and reducing rework. You can plan with confidence knowing each unit is produced to order and calibrated for tight tolerance finishes.