HSS Twist Drill

A twist drill chishandiso chinoboora gomba redenderedzwa muchinhu chebasa kuburikidza nekucheka kutenderera kune axis yakagadziriswa. Inopihwa zita nekuti chip chinyere chayo chakaita denderedzwa uye chinoratidzika sechimoko. Spiral grooves inogona kuva ne 2, 3 kana kupfuura grooves, asi 2 grooves ndiyo yakawanda. Twist drills inogona kusungirirwa pamaturusi emaoko kana emagetsi anobatwa nemaoko kana kushandiswa pamichina yekudhirowa, michina yekugaya, lathes uye kunyange machining nzvimbo. Drill bit zvinhu zvinowanzo kwira-kumhanya simbi yesimbi kana carbide.

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