It depends on what you are using it for. It can still be used as legal tender (for use at stores, etc.). It can still be used in slot machines that require quarters, and other games that require quarters, like the prize grab and arcade games.
Nothing, it is a security hole. Use 'fgets' instead.
Tweezer constraint
Stick some crap old oil in it and light an old rag and stuff it in the hole. When it gets going close the hole and hang on.
the flue pipe from my boiler runs directly to the hole in the chimney
I tried to wrench the pipe out of the hole with all my might!
A small hole is drilled into the skull
the man drilled a hole using specialized drill equipment.
No. Someone drilled a hole in it either because they wanted to hang it for use as jewelry or because they had too much time on their hands. Unfortunately the hole pretty much destroys the coin's collector value.
Most metals are initially drilled with a narrower drill, forming a pilot hole. Then the right size drill is used to complete the drilling of the hole by widening the pilot hole.
Frisbees do not have a hole in the middle of them. They have a small outlined area, but that has no actual value to it. I personally use it to know where to place my finger to spin it.
It wasn't done at the mint. Someone may have drilled a hole to hang the coin on a lanyard, to use it as a washer, or even because they had too much time on their hands. Unfortunately the hole destroys any collector's value the coin may have had.
If you want the bolt to slide through the hole a 5/16 hole will work well.
Get a device called and easy out. You have to drill a hole in the bolt first (assuming it is thick enough to be drilled). Once drilled you screw in the easy out in a reverse direction and the bolt gets undone in the process. Use a good penetrating lubricant overnight before attempting.
The Quarter-Farthing coin was minted by the Royal mint in 1839, 1851, 1852 and 1853 for use in Ceylon. They were not minted with a hole in them. Modified coins have no collector value. Without the hole, a circulated coin, depending on year and condition, might get anything from £10 to £150 GBP.
To use a protractor for circles you find the middle of the circle and you then put the dot on the hole then you measure
A scriber is a tool used to etch something on a material. The scribes I've used are a pointed piece of metal you can use to do such things as make an indent on wood to mark where a hole is to be drilled.
The vast majority of bowlers use a ball that has three holes drilled in it and some bowlers use four holes the extra one for the pinky finger.The three holes are for the thumb,middle finger,and ring finger.