HSS Asme Extra Long Drill Bit
Nha ngwaahịa
D D L2 L1 | D D L2 L1 | D D L2 L1 | |||||||||||||||||||
1/4 | 2500 | 9/13 | 12/18 | 7/16 | 4375 | 9/13 | 12/18 | 5/8 | .6250 | 9/13 | 12/18 | ||||||||||
5/16 | .3125 | 9/13 | 12/18 | 1/2 | 5000 | 9/13 | 12/18 | ||||||||||||||
3/8 | 3750 | 9/13 | 12/18 | 9/16 | 5625 | 9/13 | 12/18 |
Ihe ngosi ngwaahịa
Na mgbakwunye na ịba ụba mmanu mmanu, ọgwụgwọ black oxide na-emepụtakwa obere akpa n'elu ngwá ọrụ nke na-enwe ike ijide coolant n'akụkụ mbepụ ruo ogologo oge.N'ihi ọgwụgwọ elu oxide ojii na nchara dị elu, a na-eme ka ngwá ọrụ ahụ dịkwuo elu na nguzogide okpomọkụ ma gbasaa na ndụ ngwá ọrụ ya, na-eji akwa oxide dị nro karịa nke a na-ejikarị achọpụta ngwá ọrụ cobalt;arụmọrụ ya yiri nke ngwaọrụ enweghị mkpuchi.Ọ ga-ekwe omume iji ihe mkpuchi gburugburu nwere ọtụtụ ụdị ihe eji eme ihe.
Drills na nkewa nke 118 ma ọ bụ 135 degrees pụtara obere ike na-achọrọ na-akuba n'ime workpiece, na-egbochi mkpọpu si n'elu elu nke ihe onwunwe, onwe-elekwasị anya na ibelata mkpali chọrọ igwu.Ngwuputa a nwere ihe eji emepụta ihe pụrụ iche na ntinye aka nke onwe ya nke na-egbochi ịmịpụ, na-eme ka ọrụ ngwa ngwa na mfe.Ịbawanye ọsọ egwu egwu pụtara obere okpomọkụ na-eme ka ọ dịkwuo mma, na-agbatị ndụ nke egwu ahụ.Mbelata ọnụ na-anọgide na-adị nkọ ma na-eguzogide ojiji na-aga n'ihu.Mgbe ị na-arụ ọrụ na ntụzịaka n'aka nri (ịcha aka nri), ndị na-akpụ akpụ na-efe efe na-achụpụ ibe n'elu site na mbepụ ahụ iji belata mkpọchi.