Die Verwendung und Vorschläge von Steinbohrern
Masonry drill bits are made up of carbon steel, the carbon steel is soft There is an arrowhead-shaped tip, the shape is like a “V” and the main purpose of an electrician drill is to rely on the head It diameters is usually from 3 mm to 40 mm and can drill through concrete, bricks, and […]
Die Verwendung und Vorschläge von Steinbohrern Weiterlesen "