Makita 6176D Manual de instrucciones - Página 9

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Drilling operation

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Drilling in wood

When drilling in wood, the 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 at the point

to be drilled. Place the point of the bit in the indentation 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 at the

time of hole break through. Hold the tool firmly and exert

care when the bit begins to break through the workpiece.

•

A stuck bit can be removed simply by setting the

reversing switch to reverse rotation in order to back out.

However, the tool may back out abruptly if you do not

hold it firmly.

•

Always secure small workpieces in a vise or similar hold-

down device.

CAUTION:

•

Always be sure that the tool is switched off before

attempting to perform inspection or maintenance.

To maintain product SAFETY and RELIABILITY, repairs, any

other maintenance or adjustment should be performed by

Makita Authorized or Factory Service Centers, always using

Makita replacement parts.

Nominal diameter of

wood screw (mm)

3.1 (1/8")

3.5 (9/64")

3.8 (5/32")

4.5 (11/64")

Recommended size

of pilot hole (mm)

2.0 - 2.2 (5/64" - 3/32")

2.2 - 2.5 (3/32" - 3/32")

2.5 - 2.8 (3/32" - 7/64")

2.9 - 3.2 (7/64" - 1/8")