Monster Tool Company 3/16 x 2 RH w/CR Carbide Boring Bar, 74295, Features: Mirror polished cutting surface and a 4RMS finish, Lock down flat on shank automatically locates tool on center, NC Generation / BB Series, Made in the USA,, Shank Diameter: 3/16, MinBore: .160, MaxBore: .900, Projection: .040, Material Base: Carbide, Finish / Coating: Uncoated, MPN: 74295, PKG QTY: 1 PC