3/8 drive whitworth socket set.The sizes are 1/8,3/16,1/4,5/16,3/8,7/16 and 1/2 inch whitworth.Ideal for older british cars and bikes,where whitworth and BSF nuts and bolts are often used.The sockets are OK for DIY use and come complete with a socket rail.They are bi-hex (12 sided).Sockets or spanners marked BSW or Whitworth also fit BSF (British standard fine) fastenings.There is a size comparison chart and explanation of whitworth/BSF sizes on my web site.
For the professional workshop I sell sockets and wrenches in whitworth sizes by other makers.
Postage,I always try and dispatch same day as payment arrives.I use a priority air mail service but obviously have no control over the delivery times,which can vary depending on destination.