HSS Twist Drill
Ib tug twist xyaum yog ib lub cuab tam uas xyaum ib tug ncig lub qhov nyob rau hauv ib tug workpiece los ntawm kev sib hloov txiav txheeb ze rau ib tug axis taag. Nws yog lub npe vim hais tias nws lub tshuab raj nplaim yog muab kauv-puab thiab zoo li ib tug twist. Kauv grooves tuaj yeem muaj 2, 3 lossis ntau dua, tab sis 2 grooves yog qhov feem ntau. Twist drills tuaj yeem clamped ntawm phau ntawv los yog hluav taws xob tuav cov cuab yeej drilling los yog siv rau ntawm cov xovxwm, milling tshuab, tshuab dhos thiab txawm tias lub chaw machining. Cov khoom siv tho me ntsis feem ntau yog cov cuab yeej siv siab ceev hlau lossis carbide.