Labels:text | map | screenshot | diagram OCR: POWER DRILL Workshop HAMMER HAMMER ACTION MECHANISM MOTOR SWITCH SPEED SELECTOR AXZ SWITCH Machines DRILL BIT_ CHUCK Principles of Science TWO-SPEED GEARING - COOLING FAN History A N ELECTRIC DRILL not onlye as the power to drill through wood, but it DRILL can also drive through materials as tough as steel and concrete. Gears allow you to select the appropriate speed for drilling Inventors into a particular material. The drill may Back also have a hammer mechanism to cope with particularly tough jobs. Index SEE Options ALSO Help
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