Quick view YG-1 4 Flute 1/2" Cobalt End Mill YG-1 Log in for pricing 4 Flute 1/2" x 1/2" x 1-1/4 x 3-1/4" cobalt end mill. Log in for pricing Quick view Qty in Cart: 0 Quantity: Decrease Quantity of YG-1 4 Flute 1/2" Cobalt End Mill Increase Quantity of YG-1 4 Flute 1/2" Cobalt End Mill Price: Log in for pricing Subtotal: