Makita 60921 Instruction Manual download pdf (Page 9)

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.

prevent the bit from slipping when

starting a hole, make an indentation with

a centerpunch and hammer at the point

be drilled. Place the point

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 pres-

sure will only serve to damage the tip

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

hole breakthrough.

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

reverse rotation in

order to back out. However, the

tool

may back

out

abruptly

you do not hold itfirmly.

Always secure small workpieces in

vise

similar hold-down device.

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Makita 60921 Instruction Manual Page 9