I've had several for barbers only, none bigger than 8/8, for barbers use up to 9/8, never knew there were larger examples! Gb anchor 10/8, joseph rodgers 10/8. No true wedges in the bunch above 6/8 however. Many many near wedges in the 7/8 to 8/8 range and would give you a great feel of what you are looking to experience