12mm
10 mm would be ideal. But 13/32" will work.
A 10 cm hole is almost 4 inches ! ! - IF you meant 10mm, then that's a little over 3/8 of an inch, or 13/32 for a clearance hole.
3937 is 3937/10000. If you are converting a 10 mm whole to a fractional drill bit size you have two choices. 25/65 is a bit small or 13/32 is a bit big. If it is not a super precision part, use 13/32.
For a 10mm Rawl bolt, you typically need to use a drill bit that is slightly smaller than the bolt's diameter to ensure a snug fit. The recommended drill bit size is usually 8-9mm, depending on the type of Rawl bolt and the material you are drilling into. Always check the manufacturer's specifications for the specific bolt you are using, as requirements may vary.
attach a 10mm socket to an electric drill and place it onto the flywheel nut. start drill while giving it a bit of throttle and it should start up.
To put a drill bit in a drill, you typically loosen the chuck, insert the drill bit into the chuck, and then tighten the chuck securely to hold the drill bit in place.
metal drill bit has a finer point
A titanium or cobalt drill bit.
A chuck key is used to remove a drill bit from a drill.
The best type of drill bit for plexiglass is a carbide-tipped drill bit.
A 15/64 drill bit is slightly smaller than a 1/4 drill bit.
You can acquire a drill bit for your drill by purchasing one at a hardware store or online. Make sure to choose a drill bit that is compatible with your drill's chuck size and the material you will be drilling into.