Drilling operation

Drilling in wood

When drilling in wood, best results are obtained with wood drills equipped with a guide screw. The guide screw makes drilling easier by pulling the bit into the workpiece.

Drilling in metal

To prevent the bit from slipping when starting a hole, make an indentation with a center- punch and hammer a t the point to be drilled. Place the point of the bit in the indenta- tion and start drilling.

Use a cutting lubricant when drilling metals. The exceptions are iron and brass which should be drilled dry.

CAUTION :

*Pressing excessively on the tool will not speed up the drilling. In fact, this excessive pressure will only serve to damage the tip of your bit, decrease the tool performance and shorten the service life of the tool.

*There is a tremendous force exerted on the tool/bit a t Hold the tool firmly and exert care when the bit begins

the time of hole break through. to break through the workpiece.

*Always grip the small workpiece firmly with a vise or a holding means.

*A stuck bit can be removed simply by setting the reversing switch to reverse rotation in order to back out. However, the tool will pull away easily unless you hold it firmly before starting the tool.

MAINTENANCE

CAUTION :

Always be sure that the tool is switched off and unplugged before attempting to perform inspection or maintenance.

To maintain product SAFETY and RELIABILITY, repairs, carbon brush inspection and

replacement, any other maintenance or adjustment should be performed by Makita Authorized or Factory Service Centers, always using Makita replacement parts.

OPTIONAL ACCESSORIES

The accessories listed in this manual are available at an extra cost from your Makita distributor or Makita factory service center. Service centers are listed on the warranty card packed with your tool.

CAUTION :

These accessories o r attachments are recommended for use w i t h your Makita tool specified in this manual. The use of any other accessories or attachments might present a risk of injury t o persons. The accessories or attachments should be used only in the proper and intended manner.

Chuck key

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Part No. 763420 - 6

Part No. 273406 - 7

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Makita 6303 specifications Maintenance