OPERATION

WOOD DRILLING

For maximum performance, use high speed steel bits for wood drilling.

Begin drilling at a very low speed to prevent the bit from slipping off the starting point. Increase the speed as the drill bit bites into the material.

When drilling through holes, place a block of wood behind the workpiece to prevent ragged or splintered edges on the back side of the hole.

METAL DRILLING

For maximum performance, use high speed steel bits for metal or steel drilling.

Begin drilling at a very low speed to prevent the bit from slipping off the starting point.

Maintain a speed and pressure which allows cutting without overheating the bit. Applying too much pressure will:

Overheat the drill;

Wear the bearings;

Bend or burn bits; and

Produce off-center or irregular-shaped holes.

When drilling large holes in metal, start with a small bit, then finish with a larger bit. Also, lubricate the bit with oil to improve drilling action and increase bit life.

10 — English

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Ryobi CD100 manuel dutilisation Wood DRILLING, Metal DRILLING