Ngowuphi umahluko kunye nokusetyenziswa phakathi kwe-eccentric kunye ne-concentric bits?

Umahluko phakathi kwe-eccentric drill bit kunye ne-concentric drill bit:

I-1, isixhobo sokomba umbhobho ogxininisiweyo ngenxa yodonga lwangaphandle olujiyileyo, ulwakhiwo olufanayo lokuvula, impembelelo yokuhambisa amandla ayilunganga njengesixhobo sokomba eccentric, kuphela kwidamitha yomngxuma inkulu, isiphumo singcono, kodwa iindleko zokwenziwa phezulu kakhulu kunesixhobo sokomba eccentric;

2, isixhobo sokomba umbhobho eccentric hayi kuphela umngxuma ububanzi, kunye nesakhiwo elula, ixabiso eliphantsi yokuvelisa, kulula ukuyisebenzisa, ngoko ke sele isetyenziswa ngokubanzi.