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PUNCH AND DIE LUBRICATIONthe downstroke, the upper side of the cut
Proper lubrication is essential to prolong punchshould be lubricated.
and die life, and is achieved by occasionallyWhen cutting steel, use a cutting oil or an SAE
fully submersing the punch and die in a small
30 weight oil.
container of the proper lubricant.
When cutting aluminum, a mixture of 7 parts
To further ensure a smooth cut and long punchkerosene and 3 parts turpentine should be
life, always lubricate the cutting path with
used.
cutting oil. When cutting steel or stainless
steel, lubricate path of cut before starting work.Should punch jam, immediately switch off
When cutting aluminum, lubricate path of cutnibbler, re-lubricate punch and die, and
while making the cut. Since the punch cuts onremove tension from sheet.
Tool Tips
The corrugated nibbler is especially designedCurve cutting - For curve cutting, loosen the
for working with corrugated sheets of bothretaining screw. The die is then free to rotate
trapezoidal and rectangular profiles.and position itself in the direction of cut.
Always use both hands to guide the nibbler.Internal cuts - For internal cuts, a starting hole
Do not use force; this will lead to premature die16mm
inserted.
and punch wear.
Nibbling to template - The bottom of the die
Before running the nibbler, be sure the punch
and die are properly lubricated. See "Punchtraces the template. Note that due to a
4.5mm
and Die Lubrication" section. template and cutting edge of the die on either
Never start the nibbler with the punch and dieside, the cut-out and template size do not
in contact with the material being cut.correspond exactly. The retaining screw must
Always be sure material is resting on lower diebe loosened.
during operation.Freehand cutting - For easy movement of die
Nibbling to scribed lines - For straightabout the punch, additional accessories are
cutting, secure the die from rotating, byrequired. Accessory die holder and dies for
tightening the retaining screw. Straight cutscorrugated or flat stock may be purchased
are easily made by guiding the nibbler along afrom your Bosch distributor. See the Bosch
ruler edge.Catalog for accessory part numbers.
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ACEC
