Bike pedals used to put a metal screw cap to protect the bearings from contamination. Now, instead, use the plastic plugs, which are often lost. Rescue plastic or nylon tubes from medical bubbles. Such substitutes being kept quite steady.
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FLEXIBLE NOTCHED
Blanks of sheet metal with a thickness of 3 - 5mm will be more accurate and easier to bend at home if they are pre-trimmed along the fold lines using the grinder (and if the workpiece is...
EXTENSION TUBE-DOUBLE
To connect to the same outlet multiple appliances generally use twins, tees and various extenders. Their designs are very diverse. But here's another one, in my opinion, the simplest....
