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Even among experienced machinists, choosing the right insert for boring a hole remains a difficult process that is fraught with myth and misconception. However, it is no myth that insert selection can completely save or kill performance on an application.

While we specialize in holders, we do offer some specialized cutters with these materials and often get questions about PCD and CBN inserts. Here we tackle some of the most frequently asked questions.

BIG DAISHOWA announces new negative inserts for its SW rough boring and EWN fine boring heads.

Lead angles close to 90° more effectively combat potentially damaging chatter and vibration because they apply the least amount of radial pressure.

The is no general rule to cutting tool shank insertion as a multiplier for shank diameter. All tool holder types have different requirements.

New inserts for indexable tools—C-Cutter Mini, C-Centering Cutter and Fullcut Mill—are optimized to extend tool life in stainless steel or aluminum.

What to check when boring performance goes bad.

When it comes to boring, there are several factors that can lead to poor performance. Whether it’s long cycle times, short tool life or poor bore quality, any or all these factors may need to be addressed in order to increase productivity. Although different, these issues are often closely linked in a given application.