To meet the challenges of drilling today's advanced substrates such as the Panasonic R1755 phenolic-cured materials, Jinzhou, in their state-of-the-art Research & Development Technical Center, optimized the perfect combination and attribute features of their undercut drill bits. Our newest geometry, SR129UCSN, was expressly developed for drilling non-dicy materials.

This drill series employs an undercut design and high helix angle that promote reduced drilling temperatures and offer improved debris removal capability. These benefits result in reduced heat-related defects such as smear and plowing. Mechanical types of hole defects such as glass tear-out and fracturing are also reduced.