Toolex Reamer - Straight Shank - Spiral Flute - Carbide - H5 - 8.51mm

The Toolex Reamer – Straight Shank, Spiral Flute, Carbide, H5 – 8.51 mm is a high-precision finish tool designed to bring holes to a true, exact size in metalworking. Its straight shank fits standard toolholders, while the left-hand spiral flute ensures efficient chip evacuation and smooth cutting for consistent results. This 8.51 mm model is built for engineers, machinists, and keen hobbyists who demand reliable hole finishing in a range of materials.

Manufactured to order to maintain tight tolerances, this reamer uses intermediate precision carbide (K10) for wear resistance and long life. The flute is left-hand spiral with right-hand cutting, following DIN 212 B style geometry and ISO H5 tolerance, delivering precise diameter control and a clean finish. Please note that if a listing shows “in stock,” it refers to blanks ready to be machined into the finished reamer, with despatch typically within 24–48 hours.

• Carbide construction (K10) for long tool life: Wear-resistant material provides durable performance across repeated reaming cycles.
• Straight shank with left-hand spiral flute: Easy mounting in standard toolholders and efficient chip evacuation for reliable reaming.
• DIN 212 B-style geometry with ISO H5 tolerance: Ensures precise sizing and compatibility with common measurement practices.

Using this reamer helps you achieve tighter hole tolerances with fewer finishing passes, reduces the need for rework, and supports consistent results across production runs. The combination of carbide hardness, thoughtful flute geometry, and standard shank design makes it a dependable choice for precision boring, fixture work, and quality-controlled assemblies.