Patent ID: 8978786
Filing Date: 2015-03-17
Classification: E21B

Abstract:
1. A method of assembling an earth boring drill bit to meet a finished product tolerance relative to a desired aggressiveness of the finished drill bit using components built to a manufacturing tolerance, the method comprising the steps of: selecting a bit body from a plurality of pre-manufactured bit bodies, the bit body having one or more axially extending slots; selecting one or more legs from a plurality of pre-manufactured legs, the one or more legs including a region that is shaped to correspond with the shape of the one or more slots; placing the one or more legs within the one or more slots; and fixing the one or more legs within the one or more slots to meet the desired aggressiveness within the finished product tolerance by placing one or more shims between the one or more legs and at least one of the walls of the one or more slots wherein the one or more shims adjust an axial location of the one or more leg in an axial direction parallel to a longitudinal axis of the bit body.