Toolex Die Maker Reamer HSS-E Spiral Flute SS M35 COB 5% - 8-4mm

Toolex Die Maker Reamer is a precision finishing tool designed for die makers, machinists, and production workers who require reliable hole finishing with tight tolerances. This HSS-E spiral-flute reamer (M35 COB) features a 5% taper and a right-hand cut for predictable performance in a range of materials.

Built from HSS-E with M35 cobalt (COB) composition, it delivers enhanced wear resistance and longer tool life during demanding finishing tasks. The reamer’s tight tolerances help ensure consistent hole sizes and clean surfaces across repeated operations.

• 5% taper for consistent hole finish: Maintains accurate hole diameter from entry to depth, reducing undersize or oversize results and improving deburring quality.
• HSS-E material (M35 COB) for durability: Cobalt-enhanced steel provides better heat resistance and longer life in tough machining environments.
• Spiral flute with right-hand cutting for efficient chip removal: Improves chip evacuation, reduces clogging, and supports smooth, reliable cutting with each pass.

This reamer supports faster setup, repeatable hole sizes, and cleaner finishes in dies and molding components. With tolerances of D ±0.05 mm, d ±0.05 mm, L ±1 mm, and d1 = h8, you get dependable performance you can trust across production runs.