HSS Twist Drill
I-twist drill sisixhobo sokubhoboza umngxuma ojikelezayo kwindawo yokusebenza ngokusika okujikelezayo ngokubhekiselele kwi-axis esisigxina. Inikwe igama ngenxa yokuba ichip flute yayo imile okwe-spiral kwaye ibonakala ngathi yitwist. I-Spiral grooves ingaba ne-2, 3 okanye ngaphezulu, kodwa i-2 grooves yeyona ixhaphakileyo. Ii-twist drills zinokubotshelelwa kwisixhobo sokomba esiphathwa ngesandla okanye sombane okanye sisetyenziswe koomatshini bokugaya, oomatshini bokungqusha, iileyile kunye namaziko omatshini. Izixhobo ze-Drill bit ngokuqhelekileyo ziyintsimbi yesixhobo esinesantya esiphezulu okanye i-carbide.