Toolex Reamer - Stub Type - Spiral Flute - Straight Shank - HSS-E - H4 - 8.57mm End Mill Holders The 10 µm run-out specification

The 10 µm run-out specification helps maintain accuracy across multiple passes

use only round-shank tooling with no clamping flats—tools with flats will render the collet ineffective

with tighter tolerances and better surface quality

Material: HSS (M2 steel body)

The extended reach minimizes tool changes and simplifies complex geometries

Toolex Reamer - Stub Type - Spiral Flute - Straight Shank - HSS-E - H4 - 8.57mm End Mill Holders The 10 µm run-out specificationThe Toolex Reamer is a stub type, spiral flute reamer designed to finish holes to a precise size with reliable, repeatable results. Made from HSS E (M35 cobalt) and sized at 8. 57 mm, it uses a straight shank for quick, predictable setup in standard holders. It follows DIN 8089 and ISO H4 tolerance, delivering consistent hole dimensions across passes in demanding workloads. Manufactured to order by Toolex Ltd, this reamer is built for accuracy and