Ol gutpela tingting bilong yusim wanpela 'Core Drill'

1. Pastaim long yusim wanpela 'core drill', sekim olsem kwaliti na sais bilong dril i inapim ol samting yu laikim. Sapos yu no mekim olsem, dispela bai bagarapim wok bilong masin.

2. Taim yu wokim masin, makim stretpela spit bilong tanim na 'feed rate' bihainim ol samting bilong wokim na ol samting yu mas mekim long masin long abrusim ol bikpela o liklik spit we inap long bagarapim tul o bagarapim kwaliti bilong masin.

3. Taim yu wokim masin, putim 'coolant' i go insait long hap bilong masin long bosim 'chip' na 'machining temperature'.

4. Taim yu wokim masin, lukluk gut long makim na klinim wara bilong katim samting bilong abrusim bagarap na pasim 'core drill'.

5. Taim yu wok long masin, sekim oltaim sapos dril i bagarap na senisim o stretim hariap long mekim masin i wok gut na i wok gut.