Toolex Die Maker Reamer HSS-E Straight Flute SS M35 COB 10% - 12-5mm

Toolex Die Maker Reamer is a straight-flute reamer crafted for finishing precision holes in dies, molds, and tooling components. Built from HSS-E with M35 cobalt, it’s designed to deliver durable performance for engineers, machinists, toolmakers, tradespeople, and serious hobbyists alike.

Its 10% taper and right-hand cutting promote smooth entry and controlled material removal, producing true bores with tight tolerances. This reamer is intended for reliable, repeatable results in demanding applications.

• 10% Taper for Easy Alignment: The gradual 10% taper helps guide the tool into the hole, reduces drift, and supports a clean, first-pass bore with minimal finishing work.
• Straight-Flute Design for Stable Cutting: Straight flutes provide a consistent cutting action, minimize chatter in long holes, and simplify chip control for a smooth bore finish.
• Precise Tolerances for Repeatable Holes: Tolerances D = ±0.05 mm, d = ±0.05 mm, L = ±1 mm, d1 = h8, to ensure consistent bore size across parts and predictable performance across jobs.

This reamer delivers reliable bore quality, reduced rework, and longer tool life in hard materials, helping you maintain production schedules and achieve consistent results across dies and tooling projects.