The Nano Turbo may be the smallest member of the Turbo family, as well as the smallest in the industry, but it delivers big on performance Nano Turbo is the perfect alternative to both HSS and solid carbide, winning on pe......The Nano Turbo may be the smallest member of the Turbo family, as well as the smallest in the industry, but it delivers big on performance Nano Turbo is the perfect alternative to both HSS and solid carbide, winning on performance and economy every time. Features of the Nano Turbo: Diameter range 12 - 20 mm Fixed pockets, normal pitch Insert types XO..0602 Insert size 6 mm apmax = 10-25 mm