Technical data: Gross dimensions (width x height x length): 7.60 x 1.85 x 13.80 cm Weight: 0.03 kg Brand: GRAPHITE PKWiU: 25.73.40.0 Packaging material: card inserted into a blister For concrete: Yes For ceramics: Yes Drill chuck type: cylindrical Total product length: 65 mm Diameter: 12 mm For stoneware: Yes Type of power tool accessories: drill For glass: No For wood: No For metal: No Drilling depth: 30 mm Quantity set included: 1 pc Product material: electroplated diamond coating The GRAPHITE diamond drill bit (ref. no. 57H284) with a diameter of 12.0 mm has a blade electroplated with diamond grit. This allows you to drill holes in very hard ceramic and mineral materials (porcelain tiles, granite, marble). ** Illustrative photo