The bulkhead screws quite often come loose and continually retightening the small .050 hex screws is the main cause of rounding off both the screws and your driver.
Replace the small 0.050 screw with these
stainless steel 2-56 x 5/16 with the
larger 5/64 hex drive heads and reduce the chance of rounding off. At just £2 by paypal gift (or buyer pays fee,s £2. 27) its much cheaper than a new driver.
You will get 4 stainless steel screws, so 2 for spares, posted first class.
My feedback
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