The Crescent Screw Biter™ #2 x 4" Phillips® Dual Material Extraction Screwdriver, part CIMSDPH. Supplier specification: SCRDR PH2X4" IMPACT.
The size of the tip matters as much as its type. A driver that is too small cams out and rounds the recess, and a rounded recess is far harder to remove than a tight fastener. Match the tip to the screw and press in line with the shaft.
