You haven' said what for. Buy a set of MM Allen wrenches then you can't go wrong.
7mm Allen wrench
The recommended allen wrench size for bike pedals is typically 6mm.
The size of the allen wrench needed for bike pedals is typically 6mm.
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 size of the m6 Allen wrench needed for this task is 6 millimeters.
The recommended allen wrench size for adjusting bike brakes is typically 5mm.
There is no Allen wrench, I believe it is 14 mm open wrench.
To tighten a 10.9 bolt, you will need a 6mm allen wrench.
3/8 inch Allen wrench.
9mm Allen wrench
21mm
it is a 6mm allen wrench. A ball type allen works best to get to the plug.