4.3 is best or a 4.2 but use pleny of oil
A 4 mm drill bit is equivalent to 5/32 inch.
Your meaning is not clear . -If you are going to tap an M5 thread, then use a 5/32 drill bit. If you want a hole that an M5 bolt will fit through, use a 7/32drill bit.
5 mm = 0.1969 inch (rounded) Direct Conversion Formula 5 mm* 1 in 25.4 mm = 0.1968503937 in
Use a 1/4 inch bit, that's only very slightly bigger, less than 0.025 of a mm. larger.
If you are hoping to insert a 5mm anchor, the hole must be close. I would drill a 5mm hole.
8mm is almost exactly 5/16 inch. The wrenches are interchangable.
the answer you seek is a 5 mm, - or a tiny fraction over 3/16 inch.
0.31 inchANS 2 - or, in fractions, 5/16 ths
Not sure if this will help but - see the Article from Wikipedia in the attached link. There are various 'conversion tables' in there which might solve your question.
Three sixteenths inch is a little smaller than 5 mm, and seven thirty-seconds is a little larger.
Not unless it was reasonably loose. Usually when faced with this, I drill into the bolt with a very hard drill bit a tiny bit thinner than the bolt - ie if it's a 3/8 bolt, I drill in first with a 1/8 drill to create a guide hole, then after with a 5/16 drill to cut right through, yet not harm the threads. You have to be very careful to stick to an exactly straight course. After the hole is cleared, I pull the threads left from the bolt out as far as I can, then use a 'clearance' tap of bolt size to re-tap the hole.
5 mm = 5/1 mm