Operations

Preparation before drill grinding

1. Check drill diameter, then select proper size of collet.

2. Fit the selected collet into the collet holder with a proper angle.

3. Insert the drill into the collet, and have it protruded about 35mm, At this time do not tighten the drill securely.

4. Fit the nut into the collet, then tighten it to the nut. Slightly tighten it and allow the drill to be turned by hand.

5. Complete above steps to finish preparation before grinding a drill.

Procedures for changing the grinding wheel

1. Lhoosen screw, then open the grinding wheel guard.

2. Use a 4mm hex, wrench to loosen the screw by turning it counter clockwise.

3. Replace with a new diamond wheel, and tighten the screw.

4. Close the grinding wheel guard and tighten the screw.

Setting drill length and angle

1. Tur the guaduated collar clockwise to the end, then turn it counter clockwise to the size of drill to be ground.

2. Insert the ER collet chuck into the length setting unit, and make sure the pin is locked to the slot.

3. Turn the collet chuck clockwise until it touches the pin. Turn the drill clockwise until it touches the drill cutting edge.

4. Turn the ER nut clockwise to tighten the drill.

Primary adjusting dead point re-sharpening

1. To increase dead point turn the screw clockwise.

2. To reduce dead point, turn the screw counter clockwise.