ʻO ka taper shank twist drill ka mea hana nui loa no ka mīkini puka, maʻamau me ke anawaena o 0.25 a 80 millimeters.ʻO ka hapa nui o nā ʻāpana hana a me nā ʻāpana shank.ʻO ka ʻāpana hana he ʻelua mau ʻāpana spiral, i hana ʻia e like me ka wili, no laila kona inoa.ʻAʻole like me ka drill shank twist drill, ʻo ka taper shank twist drill ka hapa liʻiliʻi.ʻOkoʻa nā kikoʻī o ka drill twist ʻokoʻa ka Morse taper.
1. Hanaʻia i DIN338, DIN340, DIN1897
2. Ke kila HSS kūlana kiʻekiʻe, 4341 / 9341 / M2 / M35
3. Olokaʻa forged, piha lepo
4. Huina kiko: 118° a i ole 135°
Hoʻohana ʻia ka drill waena no ka mīkini ʻana i ka lua waena ma ka ʻaoʻao hope o ka lāʻau a me nā ʻāpana ʻē aʻe.