{"data":{"fields":"term_definition","term_definition":"<div class=\"definition\">Refers to the protuberance angle near the tip of a circular face-mill cutter blade. It connects the blade tip and the basic side-cutting surface, which produces a slight relief in the flank of the gear being cut. This relief is provided to minimize the danger of fillet interference during the lapping operation.<\/div><div class=\"align align-image align-left\" itemscope itemtype=\"http:\/\/schema.org\/ImageObject\"><img src=\"https:\/\/www.gleason.com\/images\/MGkGsn.8017\/544w\/ED-151b.jpg\" alt=\"ED-151b\"><\/div>"}}