WIDIA’s disc-style carbide-tipped reamer offers modular flexibility and top of the line performance

Written by: Tom Austin-Morgan | Published:

WIDIA’s Top Ream platform covers the majority of hole finishing needs, with diameters up to 42mm and a range of edge preps and geometries available.

Instead of four to eight (or more) individually brazed carbide tips, Top Ream uses a single carbide disc and brazed joint, providing a strong connection that is claimed to be virtually immune to thermal effects during machining operations.

The Top Ream platform also offers best in class carbide. WIDIA’s WU05PR advanced reaming grade was developed specifically for the demanding tool wear and surface finish requirements encountered in most hole reaming operations. For example, tests performed over a total cut distance of 30m in length showed an ability to consistently maintain surface finishes of 0.8μm in 4140 steel alloy and 1.6μm in gray cast iron, three times that of TiAlN-coated tools.

The TRM series’ mounting mechanism makes simultaneous contact on the cutting head’s face and taper. Twist the locking screw and the reamer head pops out, with no need for head to body orientation. This provides a strong, vibration-free, and extremely precise reamer interface.

The Top Ream’s design is geared towards any company that needs fine hole finishes and high productivity rates, whether it’s a Tier 1 automotive company or a small job shop.


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