WNMG-433 TiN Coated Carbide Insert ~ ISO insert number is WNMG080412. ~ I.C. is 1/2″. ~ S is 3/16″. ~ d is 13/64″. ~ r is .0472″. ~ 0 degree relief angle. ~ For turning and milling carbon and alloy steeels, tool steel and stainless steel. ~ Higher heat and wear resistance than uncoated grades.