Toolex Reamer - Straight Shank - Spiral Flute - Stub Length - Carbide - Through Coolant - H4 - 4.25mm

The Toolex Straight Shank Reamer with Spiral Flute is a stub-length carbide tool designed for precision reaming of through holes. With a left-hand spiral flute and right-hand cutting, it delivers a clean, accurate finish at a 4.25 mm diameter and conforms to DIN 8093 with ISO H4 tolerance. This makes it a reliable choice for applications that require tight dimensional control and consistent hole size.

• Carbide stub-length construction: Intermediate precision k10 carbide provides long wear life and stable hole diameter over repeated use in demanding jobs.
• Through coolant and spiral flute geometry: The coolant-through design paired with a left-hand spiral flute enhances chip evacuation and cooling, helping to reduce heat and chatter in through-holes.
• DIN 8093 / ISO H4 precision at 4.25 mm: Tight, industry-standard tolerance ensures interchangeability and accurate hole sizes for reliable assembly and performance.

This reamer is manufactured to order by Toolex Ltd, so please allow 24–48 hours for despatch. A note on stock: items listed as in stock refer to blanks ready to be manufactured into your custom reamer. Designed for professionals who need repeatable hole quality, it supports efficient setups and consistent results across production runs.