DK42 B (S,L) Diamond core drill. Drilling range: 70-400 mm. Nominal power: 3900 W. Number of gears: 3. Technical data: DK42 B DK42 BS DK42 BL. Nominal voltage 400 3~ V. Nominal power: 3900 W. Power output 3000 W. Nominal rotation speed 1/min 160/310/490 230/460/720 130/260/410. Overall length excluding handle 540 mm. Weight excluding cable 19 kg. Drilling diameter in concrete approximately 70-400 50-300 90-450 mm. Tool fixture: 1 1/4 inches. Foot mounting: standard 4 x M8 with groove 10 x 4.3. Advantages: extremely powerful and robust water-cooled three-phase motor, 3-gear drive with oil-bath lubrication, oil pump and overload clutch. Motor protection through thermal circuit breaker in the stator coil. Anti-friction element for easy release of the bit. Splash-proof according to IP55. Suitable for drilling vertically upwards without additional precautions. Usage examples: down holes in ceilings, floors and walls, drilling holes for laying cables, routes and pipes, perforation drilling for feedthroughs., drilling for cored holes and foundations
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