Patent ID: 9669473
Date: 2017-06-06
CPC Classifications: B23B,Y10T

Claim:
1. An apparatus comprising: a main body having a through hole formed therein, the through hole configured to receive a drill bushing and an alignment pin passed through the drill bushing to align the through hole substantially perpendicular to a target hole formed within a non-planar work surface; at least three legs configured to independently translate relative to each other and relative to the main body along corresponding axes toward the non-planar work surface; wherein each leg comprises a leg guide, a leg extension, and a pad, wherein the leg extension comprises a first end coupled to the leg guide and a second end coupled to the pad; and wherein the second end of each leg extension is configured to translate its associated pad in an arc about the corresponding axis of its associated leg to contact the non-planar work surface and maintain the through hole in the substantially perpendicular alignment.