Amana Tool has introduced a flush trim miniature bearing router bit (item MR0102) with a 3/16" diameter ball bearing guide for use in applications like sign making, flush trimming tight corners, routing letter edges and more. The ball bearing in Amana Tool's miniature bearing router bits is at the bottom end of the bit, to reduce burnout. The MR0102 bits start at $18.90 for a 3/8" miniature flush trim bit.