A tool that can easily excavate a 45 degree chamfered round mold. Product Details: - Size (hole bottom diameter): 1.0, 1.5, 2.0, 2.5, 3.0mm - Quantity: 5 pieces (1 piece for each size) - Shaft thickness: Dia. 3mm - Material: Special blade steel Size: Approx. 150mm x 150mm Made in Japan