Small Hole Boring Chipbreaker Geometries Geometry Selection Criteria Flat Top-Type Inserts Pressed Chipbreaker-Type Inserts Chipbreaker Geometry ..HB, ..HB-M, ..HW Chipbreaker Geometry ..LF • Suitable for interrupted cuts. • Suitable for moderate interruption of cuts. • Use when chip control is not critical. • Use when chip control is a concern. widia.com D35