MATERIAL: ACERO DE ALTA VELOCIDAD RECUBRIMIENTO DE COBALTO PARA REDUCIR LA FRICCIÓN Tamaños: #1: 3/16 "a 1/2" 6 pasos (3/16 '', 1/4'', 5/16 ", 3/8'', 7/16 '', 1/2'') #2: 1/8 "a 1/2" 13 pasos (1/8 ", 5/32", 3/16 '', 7/32", 1/4 '', 9/32", 5/16" 11/32", 3/8 ', 13/32', 7/16 '', 15/32 ", 1/2 '') #3: 1/4 "a 3/4'' 9 pasos (1/4 '', 5/16", 3/8 ", 7/16", 1/2 ", 9/16", 5/8 "11/16", 3/4 ") #4: 1/4 "a 1-3/8" '10 pasos (1/4 ", 3/8", 1/2 ", 5/8", 3/4 ", 7/8", 1 ", 1-1 / 8" 1-1 / 4 ", 1-3 / 8") #5: 3/16 "a 7/8" 12 pasos (1/4 '', 5/16", 3/8 ", 7/16", 1/2 ", 9/16", 5/8 ", 11/16 ", 3/4", 13/16 ", 7/8")