Product Description ALCOCK 10pc Imperial HSS Slot Drill & End Mill Set M3321 A great set for any metal workshop, this handy kit contains 5 x slot drills and 5 x end mills all packed in the one plastic case Features Manufactured from HSS M2 Plain shank 5 x Slot Drills (2 Flutes) 1/4, 3/8, 1/2, 5/8, 3/4" 5 x End Mills (4 Flutes) 1/4, 3/8, 1/2, 5/8, 3/4"