For an M6 tap, a drill bit size of 5.0mm should be used.
A 7/64 inch drill bit should be used for a 6 screw.
For a 6mm hole, a 6mm standard drill bit should be used.
The size of the drill bit you should use for your project depends on the size of the hole you need to drill. Check the project specifications or use a drill bit sizing guide to determine the appropriate size for the job.
For a 6 screw, you should use a drill bit that is 7/64 inches in size.
For creating a pilot hole, use a drill bit that is slightly smaller in diameter than the screw you plan to use.
For a 3/8 bolt, you should use a 5/16 drill bit.
To determine the correct drill bit size for a project, you should refer to the instructions or specifications provided for the project. Additionally, you can use a drill bit sizing chart or measure the diameter of the screws or fasteners you will be using to select the appropriate drill bit size.
A 3/16 inch pilot hole drill bit should be used for installing a 1/4 inch screw into hardwood.
I use a 3/16 drill bit for that.
That size is 8-32. The drill bit for a clearance hole is 11/64, or a #17 drill bit.
For drilling into metal, use a Phillips head drill bit that is 1/8 inch in size.
A 'unibit is a 'stepped steel drill bit that can drill any size of hole in softer materials.