Rechargeable battery-claimant drilling device has drive unit provided in drill stand and provided with holder having switchable permanent magnet, and autonomous power source provided for supplying power during drilling operation

摘要

The drilling device has a drilling chuck (4) for receiving drilling tools. An electrically operated drive unit (1) is provided in a drill stand (2) and is provided with a holder equipped with a switchable permanent magnet (8). An autonomous power source (3) is provided for supplying power during drilling operation.