
Iyo Inoyangarara Pad (inozivikanwawo seyo Inoyangarara Gwairira Pad) chinhu chakakosha chinotungamira chikamu mune yakadzika gomba rinobhowa maturusi (kunyanya BTA neEjector masisitimu). Kusiyana nemapadhi akaiswa, mapedhi anoyangarara anoshandisa chitubu-chakaremerwa kana hydraulic michina kuti irambe ichibatana nemadziro echibhorani. Ichi "chinoyangarara" chiito chinotsinhanisa kutsauswa kwechishandiso, kuve nechokwadi chekutwasanuka kwepamusoro uye kupera kwepamusoro mune yakadzika gomba machining.
Iyo Deep Hole Boring Tube ndiyo yakakosha chikamu cheBTA (Boring uye Trepanning Association) yakadzika gomba yekuchera masisitimu. Yakagadzirirwa kugadzirwa kwepamusoro-soro kwemakomba akadzika ane kudzika-kusvika-dhayamita reshiyo (D: d) ≥ 10: 1, inoshandiswa zvakanyanya muaerospace, simba, uye maindasitiri emotokari. Inoenderana neese Single Tube (STS) uye Double Tube (DTS/Ejector) masisitimu, ichishandisa yakakwirira-kudzvanya inotonhorera uye yakasimba dhizaini kuti ive nechokwadi chakagadzikana chip evacuation.