Foredom Master Stone-Setting Kit - Manual (Page 7)

7
Make sure each prong
is at the same angle
and is the same
length. File the top of
the prongs flat.
Adjust the bur’s height for the
proper stone set (distance of cut
from top of prong). set the depth of cut into
prong with stop guide.
Using the Easy-Cut Prong Guide:
1. Make sure all prongs are at the same angle. File the tops of the
prongs so they are the same height and level with one another.
2. Choose a low-speed bur that will make a cut appropriate for the
stone (usually a 90° hart bur). Fine-cut, low-speed burs will work
the best without chatter and skip.
3. Make the cuts by moving the prongs across the bur, perpendicular
to the inward direction of the cut. Cut about a third of the way
into the prong, depending on how thick the prongs are.
Many large colored stones have extra-thick girdles or some other irregular-
ity. You will have to judge if cuts need to be wider or at different levels. Be
sure to mark the stone and the setting for position as you try the fit and
make adjustments. Well-cut stones benefit from settings made with AllSet
®
guides because there is little or no unusual torque or pressure from
uneven cuts.
Check to be sure that the piece sits level on the
table without wobbling.
Position the piece on the table using the prong
guide and depth control guide. Rotate the bur
slowly at first while making the cut into the prong.
When adjusting the guide for
prong width, it is very important
that the bur is centered with
the prong for consistent and
straight cuts.
The stop guide (depth control) is
not necessary for all settings.
Use it whenever the depth of
the prong cut is critical
to the setting.
The end of the fence guide should
be positioned slightly underneath
the bur. This will prevent the prong
from slipping between the bur and
the guide.
Centered prong
Rotational force
Allen bolt
adjustment
Prong setting
with prong tips
on the table