DRILL ATTACHMENT JIG, DRILL DEVICE FORMATION MECHANISM, AND DRILL DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a drill device and a drill attachment jig constituting the drill device and a drill device formation mechanism capable of reducing a manufacturing cost, and easy to handle.;SOLUTION: A drill device 12 comprises a drill attachment jig 10 for attaching a gun drill 14 having a hollow part through which fluid exits at an outflow port, to a commercial rotary driving machine 16 for rotating the attached drill. The drill device formation mechanism 11 comprises the gun drill 14 and the drill attachment jig 10.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2017,JPO&INPIT