When the hand is not a pencil of suitable color or hardness. would be useful and “bits”, but they are inconvenient to use, they can be extended by sticking in a metal or plastic tube of suitable diameter. However, even that would be smeared, equal to the thickness of the pencils the size range — one enters too freely, the other will not wedge. I use a tube extender with internal thread M8: it holds round and hexagonal crayons.
S. KUSMARTSEV, Volgograd
Noticed mistape? Highlight it and press Ctrl+Enter, to inform us.
Recommend to read
- TAKE THE ROAD
I travel frequently, so I made myself comfortable Hiking hanger, which is even more compact folding, produced by industry. Of the device it is clear from the figure. The tube can be any,...
Among the tools and devices for measuring the internal diameter of pipes and other cylindrical bodies is probably the most simple. Made of plywood, plastic or metal, cut an isosceles...