HSS Twist Drill

A ighikota akuakuzinwo bụ ngwá ọrụ na drills a okirikiri oghere na workpiece site rotational ọnwụ ikwu a ofu axis. Akpọrọ ya aha n'ihi na ọjà mgbawa ya nwere ọdịdị gburugburu ma yie ka mgbagọ. Ọkpụkpụ spral nwere ike ịnwe 2, 3 ma ọ bụ karịa, mana 2 grooves bụ ihe a na-ahụkarị. Enwere ike iji akwụkwọ ntuziaka ma ọ bụ igwe eji gwuo ihe eletrik ma ọ bụ jiri igwe igwe igwe, igwe igwe igwe, lathes na ọbụna ebe a na-eji igwe eme ihe. Akụrụngwa bit ihe na-adịkarị elu-ọsọ ngwá ọrụ ígwè ma ọ bụ carbide.

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