Ingersoll Cutting Tools announced the next step in the evolution of the fixed-pocket, indexable BTA drill head. The new TBTA-H series heads range in diameter from 0.984" to 2.559" (25mm-65mm) and provide higher accuracy, improved straightness, better surface finish and longer tool life compared to the TBTA-C and TBTA-D series heads, according to the company.

An "H" class, peripheral ground insert mounted in the outboard station provides 50 percent tighter hole variation, providing IT10 accuracy (0.0028" total tolerance), as well as higher speed and feed capability.

Wider chip mouth for maximum chip evacuation clearance allows smooth delivery of coolant to the cutting edge and assures sufficient cooling for the guide pads.