Taper shank twist drill shine kayan aikin da aka fi amfani da shi don sarrafa rami, yawanci tare da diamita na 0.25 zuwa 80 millimeters.Ya ƙunshi sassa na aiki da sassan shank.Bangaren aiki yana da ramuka biyu masu karkace, siffa kamar karkatarwa, saboda haka sunansa.Ba kamar madaidaicin rawar murɗa na shank ba, ɓangaren ƙwanƙwasa shank ɗin taper yana da taper.Daban-daban dalla-dalla na murƙushe murɗa suna da nau'ikan taper Morse daban-daban.
1. Kerarre zuwa DIN338, DIN340, DIN1897
2. Babban ingancin HSS karfe, 4341/9341 / M2 / M35
3. Mirgine ƙirƙira, cikakken ƙasa
4. Matsakaicin kusurwa: 118 ° ko 135 °
Ana amfani da rawar jiki na tsakiya don yin amfani da rami na tsakiya a kan ƙarshen fuska na shaft da sauran sassa.