Primary End Relief

• To grind primary end relief and center relief, place end mill in fixture and grind one flute. Then index to grind opposite flute. This will give a 5 primary end relief angle.

Center Relief Angle

• This view illustrates position of wheel at start of grinding position and center relief angle 2.

Secondary End Clearance

• To grind secondary end clearance, tip fixture [as shown] using same wheel position as illustrated at left. This gives a secondary end clearance of 30. The tool will index to allow grinding opposite tip.