NITTO KOHKI Jetbroach One-Touch Annular Cutter 21 x 35 mm NO.16321

NITTO KOHKI Jetbroach 16321 One-Touch Annular Cutter 21 x 35 mm
The NITTO KOHKI Jetbroach (Annular Cutter) model NO.16321, featuring a 21 mm hole diameter and a 35 mm cutting depth, is an advanced Japanese-made innovation for high-speed drilling through thick metal. Designed to replace and completely overcome the limitations of traditional drill bits, its annular cutting process removes metal only along the periphery of the hole and ejects the center as a solid slug. This minimizes friction, delivers superior heat resistance, and reduces load on the magnetic drill machine—drilling up to 3 times faster than conventional HSS drill bits. The resulting cut offers high precision, clean and sharp round holes, and a smooth, burr-free finish. It saves both effort and time, professionally elevating structural steelwork standards.