Li-drill tsa fatše ka botlalo ke li-drill tse sebelisoang hangata bakeng sa mesebetsi e mengata ea ho cheka. U ka khetha lisebelisoa tse fapaneng tsa tšepe tsa lebelo le phahameng ho kenyelletsa M42, M35, M2, 4341 le 4241 ho netefatsa ts'ebetso e ntle ea ho itšeha le ho tšoarella. Hape re fana ka maemo a fapaneng a ts'ebetso, ho kenyelletsa DIN 338, DIN 340, DIN 1897, le Jobber lengths ho fihlela litlhoko tsa hau tse fapaneng.
Lisebelisoa tsena tsa twist drill li fumaneha ka mefuta e fapaneng, e etsang hore e se ke ea sebetsa hantle feela, empa hape e khahleha. Haeba o hloka mebala e fapaneng ea bokaholimo, re ka u etsetsa eona.
Li-drill li tla ka li-angles tse peli tse fapaneng: likhato tse 118 le likhato tse 135, hammoho le khetho ea ho eketsa likarolo tse arohaneng ho fihlela litlhoko tsa lisebelisoa tse fapaneng le lits'ebetso. Ho phaella moo, o ka khetha mefuta e fapaneng ea shank e kang li-shank tse pota-potileng tse otlolohileng, li-triangular flat bottom kapa li-shank tse hexagonal, ho itšetlehile ka litlhoko tse khethehileng tsa mosebetsi.
Re fana ka boholo bo tloaelehileng ho tloha ho 0.8 mm ho isa ho 25.5 mm, 1/16 inch ho isa ho 1 inch, #1 ho #90, le A ho ea ho Z ho netefatsa hore u ka fumana boholo bo nepahetseng bakeng sa mosebetsi oa hau habonolo. Haeba o hloka boholo bo bong ntle le ka holimo, ka kopo ikutloe u lokolohile ho ikopanya le rona.
Hore na o sebetsa mosebetsing oa tšepe, oa kaho, kapa tšimong e 'ngoe, likotoana tsa ho phunya fatše li u fa ts'ebetso e phahameng le ts'epahalo. Hore na o hloka ho cheka kapele le ka nepo kapa ho sebetsa ka lisebelisoa tse ikhethileng, re na le lihlahisoa ho fihlela litlhoko tsa hau. Mefuta e mengata ea lihlahisoa e fana ka khetho e pharaletseng bakeng sa morero oa hau, ho netefatsa hore u fumana liphello tse ntle ka ho fetisisa bakeng sa mosebetsi oa hau. Ha u khetha likotoana tsa ho cheka fatše ka botlalo, u fumana motsoako o phethahetseng oa boleng bo holimo, bo fapaneng le bo ts'epahalang.