5/16 hole X 4 inch on a flat bottom hole: This will depend on the material, and tools available. Use a 1/8 bit, then 5/16. If you are not sure how deep the drill bit is in the hole, paint white out on the bit as your 4 inch mark so you can see it while the drill is spinning. If the material is metal, you will need coolant. To get the flat bottom: it wood, put a flat ended bolt into the hole and hammer, it will flatten the hole, it metal, forget about it, the hole is quite flat, and a pain in the butt to change. :-)
Two quarters of an inch are in a half inch.
Since it is a hole, it doesn't have any dirt. But it has the capacity to hold 1 cubic inch.
1/2" Or Half Inch of 50% of 1 inch
there are 1\24 of a foot in a half an inchthere are 1\2 of an inch in a half an inch
No, it is way too big for a pilot hole as 5 mm = 0.20 inch which is smaller than .38 inch
12mm is a little smaller and 13mm is a little larger than a 1/2 inch bolt.
A, the half inch bolt has 13 rows of thread in one inch.
If you want the bolt to slide through the hole a 5/16 hole will work well.
1/2"
by using a drill
The entrance hole on bluebirds should be 1.5 inches.
5 hole x 5.5 inch bolt circle on 1/2 ton
The size is probably an half inch bolt to 3/4 bolt.
True
no, half inch difference in bolt pattern
The transmission fluid, or gear oil, filler hole is located on the side of the transmission. It is a round bolt just bigger than a quarter with a half inch square indentation. Use a half inch braker bar to get it loose. The drain plug is the same bolt located on the bottom of the tranny. I suggest you check your rear diff. fluid as well since you'll be under your car.