[Screw Pitch: 18 TPI]
HHIP TIALN coated internal threading and grooving carbide insert with right hand cutting direction. UN-60 degree full profile threading insert. Tolerance class is 2A/2B. Specification : Insert#: 16ER-18UN; I.C: 3/8; Screw Pitch TPI : 18; Length: 0.63"; X: 0.031"; Y: 0.039"; Thick: 0.143".