20pcs End Mill Set 3mm – 20mm. With 10 x 2 Flute slot drills and 10 x 4 Flute end mills in a boxed set. These are HSS with Titanium Nitride (TiN) coating in the following sizes. 3, 4, 5, 6, 8, 10, 12, 14, 18, & 20mm. Postal costs to customers in Italy will also be liable to a surcharge for items sent by post to cover the cost of’International Signed For’.