Chevy Duty has the 4 screwdriver set for $14.95.
If you are looking for the set of driver "bits", check out NAPA (maybe someone will post a part number).
Or, check
Chev\'s of the 40\'s . Where is says, "Enter Search Criteria Above", type "clutch head". They have 5 bits and sell them as pieces or as a set ($19.00).
Tim