TAKTL
®
Field Guide | Drilling for Concealed Fasteners
Doc. P10-1 Rev. 1708
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TAKTL
®
Field Guide | Drilling for Concealed Fasteners | 4 of 8
H
7.1 Drilling the Undercut
Drill small amounts of the material,
then slightly release the level to
allow the bit to retreat from the
panel so water can spray out any
slurry from the hole. Continue to
pump the lever until it bottoms out
(FIG. H)
.
I
7.2 Drilling the Undercut
While holding the front lever down
(FIG. G)
, depress the side toggle
lever
(FIG. I)
to kick the drill bit
for the undercut. Release the side
toggle lever before raising the bit
out of the panel with the front lever.
J
08 Using the Depth Gauge
After drilling each hole, review the
depth to ensure the anchor will
engage properly. Insert the end of
the depth gauge into the hole, then
depress the plunger as far as it will
go. Twisting in a clockwise motion
will help to seat the plunger. Don’t
be afraid to use some force
(FIG. J)
.
K
09 Checking the Hole Depth
The amount of exposed shaft will
determine a passing or failing hole
as shown. If the plunger seats down
completely, remove the gauge and
place the U-shaped notch of the
shim under the flange
(FIG. K).
