I-Drill ibhekisa kwindlela yokujika kunye nokusika okanye ukujika kunye nokucudisa, ukusebenzisa into enzima kwaye ibukhali kunesikhokelo, oomatshini kunye nezixhobo ezishiya imingxuma yecylindrical okanye imingxuma kwizikhokelo.Ukwaziwa njengoomatshini bokomba, umatshini wokomba, umatshini wokugrumba, umatshini wokubhoboza, njl.
Funda ngokugqithisileyo