Cobra Carbide 43648 On-Edge Solid Carbide Threading Insert, C520 Grade, Uncoated (Bright) Finish, TNMC Style, Right-Hand, 8-36 UNF External x 8-20 UNC Internal (Pack of 10)

Cobra Carbide on-edge carbide threading insert. Is a neutral rake insert with a through hole countersunk on two sides. General purpose grade designed for cast iron and non-ferrous materials. Can also be used for machining 200 and 300 series stainless steel. Provides excellent wear resistance. Solid carbide tools offer long tool life and faster cutting speeds than other substrates, but are more brittle and must be used with rigid toolholding systems. Uncoated tools feature just the base substrate without any additional treatment or coatings and are suitable for a wide range of applications.