Dremel 1/8" High Speed Steel Corner Rounding Router Bit for routing, inlaying, and mortising in wood and other soft materials. With a 1/8" cutter diameter and a 1/8" shank diameter, this bit is ideal for a variety of projects. The overall length of 2-3/4" makes it easy to handle and control. This bit is suitable for Dremel Model #230 and #330 Route.