Carbide tooling is recommended although HSS can be used for small quantities. No coolant is required. Light feeds and beveling of the work piece eliminate breakout. 125 depth of cut. Cutting oil or lubricant is optional.
Automatic feeds help avoid binding and seizing.
Parts must be securely held. Use torque tapping head and tap cutting compound. Use medium hard, medium structure, vitrified bond aluminum oxide or silicon carbide wheel. Conventional feeds and speeds. Use water-soluble oil solution.