Toolex Reamer - Taper Shank - Spiral Flute - Standard Length - HSS - H5 - 12.90 mm

The Toolex Reamer with taper shank is a 12.90 mm HSS (M2) reamer designed to finish holes to ISO H5 tolerance with reliable, repeatable results. It features a left-hand spiral flute and right-hand cutting for stable, efficient reaming in standard-length form. Supplied by Toolex Ltd to BS 328/4 standards and manufactured to order, despatch is typically within 24/48 hours.

The taper shank secures toolholding in compatible chucks, reducing runout and improving reaming accuracy. The 12.90 mm diameter is held to ISO H5 tolerance (-0 to +0.005 mm), delivering consistent bore quality and reliable fits for mating parts.

• ISO H5 bore tolerance: Delivers hole size within -0 to +0.005 mm for reliable fits and consistent bore quality.
• Taper shank for secure toolholding: Conical design provides stable seating in compatible chucks, reducing runout and improving reaming accuracy.
• Left-hand spiral flute with right-hand cutting: Optimizes chip evacuation and cutting action for smoother, more predictable finishes in standard-length reamers.

With this reamer you can achieve precise bore diameters with repeatable results, reducing rework and downtime while delivering reliable fits for mating parts. The robust HSS (M2) construction and the tapered shank contribute to long tool life and consistent performance in production or workshop settings.