19
Performing Hammer Drill Operations with the Hammer Drill
Use the hammer drill in hammer mode when drilling hard
materials, such as concrete or stone.
1.
Insert a tungsten-carbide tipped bit in to the hammer drill.
2.
Position the tool tip against the workpiece, switch on the
hammer drill, and lightly press the tool tip against the
workpiece. Excessive force will damage the tool tip and will not
increase the drilling speed.
3.
Hold the hammer drill firmly to keep the drill bit from slipping
away from the hole, and from jerking when it breaks through
the workpiece or strikes reinforcing rods in concrete.
4.
If the hole becomes clogged with debris, run the hammer drill
at an idle, then partially remove the drill bit from the hole.
Repeat this action until the hole clears out.
Performing Regular Drill Operations with the Hammer Drill
Use the hammer drill in regular drill mode when drilling relatively
soft materials, such as wood, metal, or plastic.
1.
Secure small workpieces using a vise or similar device.
2.
Lightly press the tool tip against the workpiece. Excessive force
will damage the tool tip and will not increase the drilling speed.
3.
Hold the hammer drill firmly and carefully as the bit begins to
break through the workpiece.
4.
If the drill bit gets stuck, release it by reversing the rotational
direction.
Note:
When drilling wood, use a guide screw to pull the
drill bit in to the workpiece for best results.
Note:
When drilling metals, make an indentation at the
point to be drilled to prevent the drill from slipping. For
all metals other than brass and iron, use sufficient
cutting lubricant during drilling.
Содержание HD-18-3Li-50
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