Toolex Die Maker Reamer HSS-E Spiral Flute SS M35 COB 5% - 12-6mm

The Toolex Die Maker Reamer is a precision HSS-E spiral flute reamer designed for die-makers, machinists, and metalworkers who demand clean, accurately sized holes. Crafted from HSS-E (M35 COB) steel, it combines wear resistance with long life to keep you productive through tougher jobs.

Featuring a 5% taper and a right-hand spiral flute, it delivers consistent bore dimensions along the full length and smooth cutting action for burr-free finishes. Tight tolerances apply: D = ±0.05 mm, d = ±0.05 mm, L = ±1 mm, and d1 = h8, helping mating components fit reliably.

• 5% tapered design for consistent bore sizing: The gradual taper yields uniform hole diameter from entrance to exit, reducing over- or under-sizing and promoting accurate reaming in hard or soft metals.
• HSS-E (M35 COB) steel for extended tool life: High-speed steel with cobalt offers improved wear resistance and sharpness retention, so you can ream more holes between tool changes.
• Spiral flute with right-hand cut for smooth cutting and debris control: The spiral geometry eliminates chatter, provides easy chip evacuation, and delivers a cleaner, burr-free hole-ready finish.

This reamer is a dependable choice for die shops, toolmakers, and maintenance teams looking to improve workflow and results. Its durable material, precise taper, and controlled tolerances translate into fewer rework cycles, faster setup times, and consistent hole quality across batches—helping you hit tighter assembly tolerances and finish faster.