I need simple, but careful cut outs of products to a white background.

The products have been shot on a light box, so already have a white background, but need the full white treatment! They need to be very carefully cut out, and we do not put a shadow under the finished item. I can usually cut out each one in about 2-3 minutes, so are not difficult. They need to be saved as Tiff and also a 1000 x 1000 px jpg - these obviously need to be very symmetrical. Please look at our website for examples www.thewoolcompany co.uk. I regularly need work doing, and need it doing swiftly.