Tapper set for through holes

Comprising 1 x M12 threading drill in accordance with DIN 352 / ISO 13 with 3/4” Weldon adapter, 1 x HSS twist drill, 10.2 mm in diameter, with 3/4” Weldon fitting and 1 x HSS 90° countersink bit, 16.5 mm in diameter, with 3/4” Weldon adapter and 1 x hexagon socket wrench in a handy plastic storage box.