Didn't think of that ... my 12-point bits have flat ends but some of my allens are beveled ... that will be helpful to keep in mind on a LOT of bolts in the future. Thanks. Why are some made with a taper? Easier to get in the hole?

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1987 300D, arctic white/palomino--314,000 miles
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Yes, they have that bevel so that the go into the Hole easier. However, the various companies have their own idea as to how much bevel to put on.
On some of them you would lose almost 1/2 0f the gripping area inside of the head and if you added a little dirt to that they are more prone to strip out the head than a tool with no bevel.
If you notice most "L" shaped Allen Wrenches almost always have flat ends on them (no bevel).
For some reason when they make Allen Sockets they put a bevel on them.
I would rather have a little bit of trouble getting an Allen Socket into the hole than to strip out the head of an Allen Bolt.
But, you will decide what is best for you.

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84 300D, 82 Volvo 244Gl Diesel