Scriber (pen or Scribe) is a tool for marking metal surfaces. Such products of various designs are produced by industry and their quality varies greatly. In order not to waste money in vain, you can do it yourself, even with low qualifications and without expensive materials. To do this, you will need to make a bolt with a TVS hex head with a diameter of 10 mm 150 mm and a drill made of 3 mm high-speed steel with a hardness of 60-62 HRC will be suitable. You will also need the following tools: grinder; in a vice, cut off the head and most of the threads. Insert the bolt into the drill, turn it on and use a grinder to round the end formed after removing the head, and instead of the remaining thread, form a cone and blunt its edge. Using a file, we straighten the cone and make two zones on the rod for the convenience of later holding the tool with your fingers. We finally form the other end. We clamp a (broken) high-speed steel drill with a diameter of 3 mm into the drill and give the workpiece the shape of a sharp cone. The tip can also be made of silicon carbide or tungsten. We cut a blunt bolt taper and drill an axial hole with a diameter of 3+ mm and a depth of about 25 mm, so it is quite ready for work on soft metal. they did.
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