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Kickback is a sudden reaction to a pinched or
snagged rotating wheel, backing pad, brush
or any other accessory. Pinching or snagging
causes rapid stalling of the rotating accessory
which in turn causes the uncontrolled power
tool to be forced in the direction opposite of the
accessory’s rotation at the point of the binding.
For example, if an abrasive wheel is snagged
or pinched by the workpiece, the edge of the
wheel that is entering into the pinch point can
dig into the surface of the material causing the
wheel to climb out or kick out. The wheel may
either jump toward or away from the operator,
depending on direction of the wheel’s movement
at the point of pinching. Abrasive wheels
may also break under these conditions.
Kickback is the result of power tool misuse
and/or incorrect operating procedures or
conditions and can be avoided by taking
proper precautions as given below.
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2. F#*%#/*4",7%4,(*%).*8%)&(Z"83%4&(8*(#I%
#.,(/%*93*#%*$41%Avoid bouncing and
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edges or bouncing have a tendency
to snag the rotating accessory and
cause loss of control or kickback.
3. X&%8&$%,$$,4.%,%$&&$.*9%#,)%
+7,9*1%Such blades create frequent
kickback and loss of control.
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$.(&)8`1%Feeding the tool in the wrong
direction causes the cutting edge of
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the tool in the direction of this feed.
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47,5/*91%These wheels will grab if they
become slightly canted in the groove, and
can kickback. When a cut-off wheel grabs,
the wheel itself usually breaks. When a rotary
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and you could lose control of the tool.
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side of a cut-off wheel. Abrasive cut-
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wheels may cause them to shatter.
2. <&(%$.(*,9*9%,+(,#"Y*%4&8*#%,89%/7'3#%
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Overstressing the wheel increases the
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snagging of the wheel in the cut and the
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4. X&%8&$%/&#"$"&8%>&'(%.,89%"8%7"8*%)"$.%
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