4
Veritas
®
Twin-Screw Vise
vise. As mentioned in the
workbench instruction
booklet and drawing, do
not drill dog holes on the
skirt that will hold your
twin-screw vise. Make your
rear jaw 1
1
/
2
" thick, the
same height as your front
jaw (at least 6" tall) and
the full width of the end of
your bench, and attach it
directly to your bench skirt.
This will give you an extremely solid rear jaw. One small drawback
of this method is that your jaw opening will be slightly reduced due
to the thickness of the rear jaw assembly. If you wish, the nuts may
be mortised into the skirt. Even if you don’t mortise the nuts into the
skirt, the twin-screw vise gives you ample capacity.
To attach the rear jaw to the end skirt, simply drill and countersink
for #14 × 2
1
/
2
" wood screws (minimum four screws) through the
rear jaw and screw into the bench skirt. Plug the countersunk holes.
Do not glue the rear jaw onto the skirt so that, should you ever need
to replace or resurface your rear jaw, it can be readily removed.
Although the kit contains four hex bolts and round nuts, they are
required only for retrofi tting to an existing bench that has no skirt.
Your end skirt will provide ample support for your rear jaw, which
needs only to be screwed in place as described.
Installation
Before you begin to install your Veritas
®
Twin-Screw Vise,
please
read the instructions completely
. There are several tips and
hints that will make your vise easier to install and work better.
As you begin to assemble the vise, you will notice the two vise
screws are not identical. In the instructions, we tell you to assemble
the vise with the driving screw (the one with the spring-loaded drive
pin) on the right and follower screw on the left. If you wish to reverse
this, it is all right to do so. Simply interchange the left and right vise
screw at step #11, putting the screw with the drive pin on the left.
Before you begin, it is also a good idea to remove the heavy rust-
inhibiting wax coating from the vise screws. Mineral spirits and
an old toothbrush will do an excellent job. After they have been
installed, we recommend coating the screws with grease. Wipe off
any that ends up on the thread crown. It is effective only on the sides
and root of the thread anyway. Don’t worry about grease coming in
contact with your work; the steel dowel pins prevent that.
Installation Steps
1. Ensure that all parts are present:
• two vise screws with nuts, T-handles, sprockets,
thrust plates, and washers
•
two vise handles, four end caps, one speed knob
• Chain cover. Note that the vise with the long cover
(05G12.22) comes with an additional 53
"
long chain.
• Bag
containing:
•
5
/
32
"
hex key
• four
3
/
8
-16 × 5
"
hex bolts, round nuts, and washers
•
two #10 × 1
1
/
2
"
round-head wood screws and
chain rollers
• two
3
/
8
"
dia. × 2
1
/
2
"
steel dowel pins
• one
1
/
4
-20 × 3
"
round-head screw
• six
1
/
4
"
washers
•
one nylon bushing
• two
1
/
4
-20 hex nuts
• four
1
/
4
"
× 1
1
/
2
"
lag bolts
• one
39
"
long chain
•
one chain link
• one
1
/
2
link
•
eight #14 × 1
1
/
2
"
flat-head wood screws
•
four #8 × 1
1
/
4
"
round-head wood screws
•
four #10 ×
3
/
4
"
round-head wood screws
2. Remove the nuts from the ends of the screws.
3. Scribe horizontal and vertical lines on the front jaw where
the vise screw center line will be.
This line should be at least 1
1
/
2
"
lower than the underside
of the bench top to allow room for the nuts and screws to
travel under the bench. For maximum throat depth, this
line may be scribed 2
5
/
8
"
from the bottom of the jaw,
provided the screw center line will still remain at least
1
1
/
2
"
below the underside of your bench.
4. Once the front jaw is correctly marked, clamp the front and
rear jaws together for drilling. Be sure to mark the top or
sides of the jaws to maintain alignment on reassembly.
5. Using
a
1
1
/
2
"
saw tooth or forstner bit in a drill press
(either bit will give a very accurate, smooth hole), drill
completely through both jaws and remove the clamps.
Hint:
When drilling the holes for screws, nuts, etc., do not
rotate or turn the workpiece on the drill-press table. (See
illustration.) Instead, slide the workpiece over. If your drill
press is slightly out of alignment (off 90° from table to spindle),
you will double the error by turning your workpiece end for
end rather than sliding it along the drill-press table.
Detail View:
Scribed Line
Front Jaw
Rear Jaw
1
1
/
2
"
Min.
Bench Top
Rear
Jaw
Skirt
Bench Core
Skirt
Nut
Mortise to
a max. of 1
"
into skirt if
desired.
