Micro-Tec HSS Annular Cutter
HSS 28 × 50mm, Weldon Shank 19.05mm
Annular cutters are more efficient than twist drills for tube and pipe applications because their hollow design eliminates "dead-zone" resistance. Unlike twist drills—which suffer from zero surface speed at the center point and require high pressure—annular cutters distribute the cutting load evenly. This results in cutting speeds up to three times faster, improved hole accuracy, and a superior finish that eliminates the need for deburring.