11 N New since T ool Manual 21 N New in the PFERD pr oduct line 2012 N e w i n t h e P F ER D P r o d u c t L i n e 2 0 2 T C B u r s P L A S T C u t Cylindrical bur PFERD Speci fcation Number Z YA Cylindrical Shape ZY A with Center Drill Center drill d 1 d 3 d 2 l 2 l 1 Special end cut d 1 d 2 l 2 l 1 Cylindrical Shape ZY A with Special End Cut Head Dia x Length d 1 x l 2 Inches Shank Dia d 2 Inches Overall Length l 1 Inches Cut T ype and EDP Number PLAST TC Burs with Special End Cut N 14 x 1 14 234 26430 1 N 516 x 1 516 234 26431 1 TC Burs with Center Drill N 14 x 1 14 234 26420 1 N 516 x 1 516 234 26421 1