Giraud Tool Company, Inc.
GIRAUD POWERED CASE TRIMMER
Page 6 of 10
both inside and outside. You can check just how even this is by running your
fingernail along the outside of the case from the shoulder to the case mouth. If
you feel a slight burr on the outside of the case mouth and it doesn't look like
enough metal was removed from the inside, carefully loosen the set screw on the
trimmer shaft and move the blade to the outer edge of the shaft by a few
thousands of an inch. In most instances, the majority of the metal removed will
be on the inside. The only necessary metal removal on the outside is to remove
any burrs, anything more is not really functional or buying you anything.
It really doesn't take much movement. Usually you can loosen the screw and
move the blade out and try to get it right back in the same spot, and it will be in a
slightly different spot. Another method is to loosen the set screw and tighten it
back just touching the blade, then tap the new blade with a small pen or other
small pointed object to move it left or right ever so slightly. Tighten the set screw
firmly, turn it on, and try another case. When you get it right, the case will have a
bright clean trimmed surface on the inside of the case mouth that extends into
the case about 1/32" deep (a little more than half the thickness of a credit card
edge) with no burr on the outside of the case mouth. As a tip, leaving the jam nut
loose, you can wiggle the case and case holder assembly a few thousandths to
make fine adjustments to the blade position without knocking the blade way out
when trying to make the last fine movement.
Once the case chamfers are set, measure a few cases and determine if the case
length needs final adjustment as well. Remember to loosen the jam nut and
unscrew the case holder to lengthen the case, and to screw in the case holder to
shorten the case length. Once the length is set, tighten the jam nut and flip the
trimmer vertical again to begin trimming your cases.
Interchangeable Head Feature
All new trimmers (after August 2003) are furnished with the ability to swap out the
cutting head as well the case holders. This allows the user to keep a dedicated
case head for each caliber they choose to trim, thereby reducing or eliminating
the need to adjust the cutting blade
every time the caliber is changed.
Older versions of the Giraud Power
Case Trimmer can be updated to gain
this feature if desired, contact GTC for
details if interested. See Fig. 6.
To remove the cutting head, first
remove the case holder from the
trimmer by loosening the lock nut and
unscrewing the case holder from the
trimmer body. Then using the
provided spanner wrenches to hold the
shaft and cutting head, loosen the
head from the shaft. The cutting head
is attached with a standard right hand
Figure 6 -
Case holder, interchangeable cutting head and
spanner wrenches shown with trimmer.
