Snap-on Tools 2 Pcs 3/8 and 1/4" Dr 1/8" SAE Hex Bit Socket TMA4 Replacement Tip FA4A. You will receive 2 new original snap on replacement tips for a TMA4 or FA4A. These will only work the hex sockets that have the set screw on the side that holds the bit into the sockets. They will not work in the sockets that have a part number that ends in E. USA shipping only. The 2 chrome sockets in the photo are for demonstration only and are NOT included.