Straight Shank with 3-Equal-Flats to Fit 3/8'' or 1/2" Chuck; Include size: 3/8" (fit 3/8'' shank Chuck), 1/2", 9/16'', 5/8", 3/4" (fit 1/2'' shank Chuck) Spiral Flute, 5 Flute Straight shank with stop collar to prevent the reamer running through the hole Packed in fitted Aluminum box Straight Shank with 3-Equal-Flats to Fit 1/2" Chuck; Spiral Flute Include size: 3/8" (fit 3/8'' shank Chuck), 1/2", 9/16'', 5/8", 3/4" (fit 1/2'' shank Chuck) Gold oxide Straight shank with stop collar to prevent the reamer running through the hole Packed in fitted Aluminum boxVástago recto con 3 partes iguales para adaptarse a un mandril de 3/8'' or 1/2 "; flauta espiral Incluye tamaño: 3/8", 1/2 ", 9/16 '', 5/8 ", 3/4" Óxido de oro Vástago recto con collarín de tope para evitar que el escariador pase por el orificio Empaquetado en una caja de aluminio ajustada