Toolex Die Maker Reamer HSS-E Spiral Flute SS M35 COB 8% - 18-8mm

Toolex Die Maker Reamer is a precision HSS-E spiral flute reamer designed for die making and precision bore finishing. Crafted from HSS-E (M35 COB) alloy, it offers excellent wear resistance for dependable performance in tough materials. Its design emphasizes accurate hole sizing and repeatable results for professional workshops and confident DIY projects alike.

Featuring an 8% taper, spiral flute, and right-hand cutting, this reamer delivers smooth entry and efficient material removal, helping you achieve consistent bore sizes with fewer finishing steps. It’s a practical choice for engineers, machinists, toolmakers, and hobbyists who require reliable, high-quality bore finishing.

• 8% taper for precise bore sizing: The tapered geometry reduces cutting forces and guides the reamer for consistent hole diameters, with tight tolerances to support repeatable results (D ± 0.05 mm, d ± 0.05 mm, L ± 1 mm, d1 = h8).
• Spiral flute with right-hand cutting: Optimizes chip evacuation and delivers a smoother cut, helping produce cleaner holes with less manual finishing and fewer rework steps.
• HSS‑E (M35 cobalt) for durability: The cobalt-enriched composition boosts wear resistance for longer tool life and reliable performance in demanding materials and busy workshop environments.

This reamer is designed to integrate seamlessly into standard die-making workflows, providing consistent, high-quality bore finishes that you can depend on across parts and batches. With its robust construction and precise tolerances, it supports faster setup, fewer adjustments, and overall improved productivity in metalworking projects.