Toolex Reamer - Stub Type - Spiral Flute - Straight Shank - HSS-E - H4 - 17.38mm

Delivering a precise 17.38 mm hole finish in tough alloys, this Toolex stub-type reamer uses HSS-E cobalt and a left-hand spiral flute to achieve controlled material removal with a clean, accurate finish. Designed for ISO H4 tolerance, it’s the right choice for high-precision reaming in demanding applications.

• Diameter: 17.38 mm nominal
• Material: HSS-E (M35 cobalt) for increased hardness and wear resistance
• Flute: Left-hand spiral flute; right-hand cutting
• Shank: Straight shank, stub length; DIN 8089
• Tolerance: ISO H4
• Manufacture: Manufactured to order; dispatch within 24–48 hours
• Brand: Toolex Ltd.

By finishing holes to H4 tolerance, this reamer ensures consistent fits for mating components and repeatable production results. The HSS-E cobalt base offers enhanced wear resistance when working with alloyed steels and other hard materials, delivering longer tool life and stable, round hole geometry. The DIN 8089 standard aligns with common reaming procedures, making this tool readily interchangeable with compatible tooling in workshops and production lines. Because each reamer is made to order, you can expect precise sizing aligned with your project timelines within the stated dispatch window.