Here’s a simple device, which you can use per minute to make any small spiral spring. A u-shaped bracket with the rows of holes and some steel tap wrenches of different diameters — all that is required. Insert in the corresponding hole of the bracket selection tool, thread through the top hole and the slot of the nose of the crank end of the wire And twist the handle.
Recommend to read
OVERSEAS HEAVYWEIGHTS
One of the most curious facts from the history of shipbuilding the United States of America is that their first armored cruiser in essence was neither domestic development or cruiser...
INSTEAD OF A STYLUS — DRILL!
For fastening small diameter drill bits in the Chuck mini-drill, the assistant Amateur radio operators and hobbyists, perfect for collet clamping device of an ordinary compass, which...
