Thanks again to all who took the trouble to contribute. The socket was 1" and 1/16" exactly correct. Next of course the nuts would not budge so I got the 2ft length of pipe. Then of course my old ratchet bent and kept slipping but finally after spending $12 on a decent ratchet and $10 on the pipe I was able to replace my front brake pads.

There is now no sign of the anti-lock brake warning light.

When I get around to the rear pads is there anything different I should be aware of?

Alan