T Y P - 7 5 M A G D R I L L
10
Ø
Make sure to keep the cutting material adequately lubricated.
Ø
Ease up on feed pressure as the cutter starts breaking through the backside of the
material.
o
If using annular cutters with a centering pin, the slug should eject using the
spring-loaded mechanism in the drill shank. Be mindful that this slug can
eject at a rapid rate, so be sure all is clear on the output side of this slug to
prevent injury to persons or property.
Ø
Finish drilling the hole.
Ø
Turn the motor off and disconnect power once the drill is safely back up in the non-
drilling position.
o
Remove metal chips wrapped around cutter and tool holder. Use a leather
glove or pliers as these metal pieces can be sharp.
Ø
Disconnect safety chain and move the drill to a new drilling location.
INSTALLING ANNULAR CUTTERS
Ø
WARNING: Annular cutters are extremely sharp and should only be handled with a
thick glove so as not to cut the user during installation or removal.
Ø
Check that the cutters are sharp and not damaged.
o
Annular cutters that are dull or damaged should not be used.
Ø
Insert the pilot pin into the center of the annular cutter you have chosen.
o
NOTE: The pilot pin helps in locating the center of the hole as well as ejecting
the metal slug after the cut.
Ø
Make certain the machine is unplugged from power.
Ø
Raise the tool holder to ensure ample room to install the cutter.
o
If using
¾
” annular cutters, you will need to first install the
¾
” adapter. If
using 1-1/4” cutters you can skip this step.
§
Loosen the hex head set screws on the side of the Weldon shank.
§
Insert the
¾
” adapter into the 1-1/4” Weldon shank.
§
Align the two “flat” sides of the adapter with the flat sides of the
Weldon shank. Make certain the screw is not simply on the round part
of the adapter.
§
Tighten one of the hex screws while slowly rotating the cutter forward
and backwards.
§
Continue to tighten the screw until fully tightened.
§
Tighten the 2
nd
hex screw.
