To allow a tip of a sealing material pack to be received without cutting it in advance for dispensing a sealing material and to cause the sealing material in the sealing material pack to be easily dispensed without discharging cut tailings of the tip of the sealing material pack.

A drill jig body 1 is equipped with a dispense hole for a sealing material at the center of a support member 9 formed with a cross section in an inverted cone including a flange, while reinforcing ribs coupled to a periphery including an inverted-cone-like slope are provided at an approximate center of the dispense hole to have them crossing. A main protrusion 12 with a triangular cross section and a sharp edge and an auxiliary protrusion are symmetrically placed respectively at both ends of each reinforcing rib and along a periphery between the respective ribs.