The hole, which is six sided, is actually in the head of the Allen screw or bolt, NOT in the wrench. The Allen wrench is a six sided tool steel bar made to very precise measurements and often, but not always, bent at a right angle at one end. Professional Allen wrenches almost always have a large 'T' handle to use as a grip, and are about 7-9 inches long, as opposed to the smaller ones you find in hardware stores. The Allen wrench principle is to allow more torque on the screw or bolt. Many mechanics even have an entire set of Allen bits to fit on their torque wrench. Variations on the well known Allen head, (which has been around since 1912) are the modern Torx screw and the Bristol screw (much used in British aircraft industry) - All of these have a similar shape and a common principle of allowing more torque to be applied, and avoiding what is called 'cam out'.
A Torus is the mathematical term for a donut shape, that is to say, a circle with a smaller hole within the middle. The plural is toroids.
[despite the fact that this is under "rhetorical questions" I will answer it anyways] Man-holes are round because no matter which way you turn the lid, it will never fit into the round hole (With a slightly smaller diameter). If it were any other shape, like a square or triangle, it would be possible to drop the lid in the hole by turning it diagonally.
off course you can
A hole the size of a quarter is plenty big enough to allow entrance to a bat.
hexagon
Hexagon
hexagon
Hexagon
a hexagon
Allen keys are hexagonal. The shape is a hexagon (6 sided figure).
If the allen wrench hole is stripped, you can try using a rubber band or a piece of steel wool to fill the hole and then insert the allen wrench. If that doesn't work, you may need to use a screw extractor tool to remove the stripped screw.
To determine the size of the rounded Allen wrench needed for the task, measure the diameter of the screw head or the hole it fits into. Match this measurement to the corresponding Allen wrench size.
The hole, which is six sided, is actually in the head of the Allen screw or bolt, NOT in the wrench. The Allen wrench is a six sided tool steel bar made to very precise measurements and often, but not always, bent at a right angle at one end. Professional Allen wrenches almost always have a large 'T' handle to use as a grip, and are about 7-9 inches long, as opposed to the smaller ones you find in hardware stores. The Allen wrench principle is to allow more torque on the screw or bolt. Many mechanics even have an entire set of Allen bits to fit on their torque wrench. Variations on the well known Allen head, (which has been around since 1912) are the modern Torx screw and the Bristol screw (much used in British aircraft industry) - All of these have a similar shape and a common principle of allowing more torque to be applied, and avoiding what is called 'cam out'.
If you look by the shifter console there is a little cap or lid remove this and inside the hole is a little flange, either use a screwdriver or Allen wrench and push down on it. This will allow the key to turn. I acually leave the Allen wrench in the hole because sometimes it will act up. hope this helps
You have to lift the car level and remove Allen wrench plug the fluid should be even with the hole
To remove a stripped Allen bolt using an extractor, first drill a small hole into the center of the bolt. Then insert the extractor into the hole and turn it counterclockwise to grip the bolt. Use a wrench to turn the extractor and remove the bolt.