OSG 5/16-18 UNC, 3 Flute, 50° Helix, Bottoming Chamfer, Bright Finish, HSS Spiral Flute STI Tap Right Hand Flute, 2-23/32" OAL, 0.381" Shank Diam, 1-1/8" Thread Length - Walmart.com
Dormer S2258.0 Shank Finishing End Mill, Altin Coating, HM, Head Diameter 8 mm, Flute Length 20 mm, Full Length 64 mm: Amazon.com: Industrial & Scientific
OSG Tap and Die - 20426200 - Corner Radius End Mill, 1 in Milling Dia, Carbide, Bright (Uncoated): Amazon.com: Industrial & Scientific