With the mobile drilling aid, you can achieve precise 90° immersion angles and pinpoint drilling when using Forstner and cylinder drills. The drilling aid sits non-slip on the workpiece with its rubberised contact surfaces and guides your drill exactly at the right angle. Central markings on all 4 sides and the side stop make it easier for you to position correctly, especially in series drilling. The V-groove provides grip when drilling in pipes, edged and round timbers. For work that requires fixation, you can easily secure the drilling aid with clamping clamps. Also suitable accessories are available separately for depth-limited drilling (4681000) and the extraction of the drilling dust during the drilling process (4682000).