
CHAMFERING RINGS ASSEMBLY OF CHAMFERING RING 1. Insert the chamfering ring on to the drill body. 2. Slide the chamfering ring to the desired position. The stopper must be inside the flute. 3. Rotate the chamfering ring 4. Tighten the chamfering ring and clamp the drill head. counterclockwise until stopper engages the flute edge When the chamfering ring is clamped correctly, the drill flute will be aligned with the chamfering ring flute. 290