benchmark 6 lobe screws

They are called torx head screws and do indeed take special bits (torx bits). You should be able to find suitable screwdrivers at sears, the bits are not a benchmade invention they just use them.
 
I bought mine at Sears, but Benchmade also has a nifty little set that stores in its own case. Might want to check it out.
 
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