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Dan writes -
If you haven’t got tools – the right tools – then you’re not a geek. Sorry. It’s the truth. Let’s take it as read that you already know about screwdrivers and pliers. Even hammer technology is not beyond your ken. Here’s some gear you might not have heard of, but without which your PC-fiddling toolbox is not complete.
Techno-Tools – Link.
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Princess Auto in Canada sells similar “security bits” as the Jaycar parts. They also have tapered reamers and “dremel” tools etc at reasonable prices if you are looking for inexpensive but not necessarily high quality.