• I've got a set of the 5-sided security skewers which I thought might be more secure than the normal 6-sided Allen key ones. My only comment with them is the threaded side is quite deep, bigger than on the Allen fitting ones, and it's knurled, which would make it quite easy to simply stick a mole grip on and twist it undone. I don't therefore feel like they're any more secure than the 6-sided ones to justify the extra cost and carrying an additional tool.


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