Annular Cutters

Annular cutters are used to create through holes in a range of materials, with best performance in hard-to-machine materials as well as mild steel and stainless steel. An annular cutter removes only the circumference of a through-hole (extending through the workpiece), releasing the central material as a slug when the hole has been cut. The center-free design of the tool results in energy efficiency and reduced cycle time: the operator can produce holes three to five times faster than with a conventional twist drill that must convert the entire hole into chips. In addition, this tool’s multiple cutting edges can create an accurate, burr-free hole that minimizes the need for secondary operations such as pre-drilling and reaming.