10 PC 4 Flute HSS End Mill Set. - 3/16 x 3/8 HSS. - 1/4 x 3/8 HSS. - 5/16 x 3/8 HSS. - 3/8 x 3/8 HSS. - 7/16 x 3/8 HSS. - 1/2 x 1/2 HSS. - 9/16 x 1/2 HSS.
eBay