You might try searching ebay for the tap and bushings and save yourself a couple of bucks.It is the threads in the frame that are stripped out.Each time I remove a screw its stripped out also so I put a new one in and a little glue to hold it each time.It's just getting a little pricey on replacement screws.
If you don't already have one a 1911 catalog from Brownells is nice to have on hand.Thanks for the info.I found a Swenson grip bushing tap online for $19.99 and Brownells had one for $54.99 w/bushings..Appreciate the help.