| 摘要 |
The power drill (1) with housing, handle (11), control button (12) and chucks (10) is equipped with a coolant supply duct (3) and a coolant discharge outlet (4). The supply duct (3) is controlled by two valves (5,6) and a glass sight gauge (7), and leads from the gauge (7) through the housing and the chucks (10) into the drill (2). The first valve (50) adjusts the diameter of the supply duct with a magnet (52) and is connected to the coolant discharge outlet (4). The outlet (4) can be adjusted by the second valve (60) and is manually controlled. |
