Since both 0.5 inch and 0.6 inch (13 mm) and 0.6 inch (15 mm) are the same, but since the accessories are 1 larger size, they cannot be installed unless they are a 6BX tool. The product is beautiful, but please be sure to purchase a 0.7 inch (18 mm) tool and install it. Brushed silver is available in 15mm and 18mm, antique gold is available in 13mm, 15mm and 18mm. Can be used for coats, sportswear, apparel, casual dresses, bags, purses, etc.