Electric drill (Electric Drill) drill tool drilling machine, which is convenient, fast, saving time, labor work.The use and maintenance.1. Secret drill, sharp.2. Take out and rotate the drill head to catch bits in place after every use.3. Apply the grease that gear and head catch drill once a month.4. Select bits to have teeth and sharp JH clubs that suitable for the job.5. Choose the speed to suit the type of material, and the size of the hole to the drill.6. Should not hand pull the scrap metal in while drilling.7. If the drill hole jammed with Swiss should be closed immediately.8. Before drilling should be nailed iron lead center according to desired position drill before.9. Catch piece tightly.10. Should give sharp cut both started cutting in proper position.
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