Equipment technician
6. Concrete as tools, drilling machine, which is convenient, quick, save labor in work
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3 use and maintenance. Apply greases gear and head catch drill once a month
5.Choose the speed to suit the type of material
6. Don't use your hands to pull scrap metal while the drill
7. If าเครื่อ jammed with hole should turn off the switch ทันทีั. '
8. Before drilling should be nailed iron lead center according to the position which needs to penetrate the first
9.Catch the target firmly
10. Should give sharp cut both started cutting in the correct position
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