Sandvik Coromant TPMT 16 T3 12TR-23 H13A Drill Insert

Sandvik Coromant TPMT 16 T3 12TR-23 H13A is a T-Max drill insert in triangular TPMT 16 T3 geometry, designed for general‑purpose drilling in Sandvik trepanning heads, and sold in a pack of 10. The inserts feature a 0.375 in inscribed circle (9.525 mm), a body length of 0.650 in (16.50 mm), and a thickness of 0.1562 in (3.97 mm), with an H13A substrate grade for wear resistance. The 12TR-23 designation and T-Triangle geometry identify the specific cutting-edge and seating profile used with TPMT 16 T3 holders, delivering reliable edge life and predictable performance in drilling operations. This insert is intended for general drilling tasks where compatibility with Sandvik's TPMT tooling is required, helping to maintain tool life and consistent hole quality across production runs.