JET JFM-5 Hollow Chisel Mortiser
Cutting accurate mortises can be a challenging task. The JET JFM-5
Hollow Chisel Mortiser is designed to produce extremely accurate
mortises in a wide range of woods and project designs, plus make this an
easy task for the woodworker. The JET JFM-5 Hollow Chisel Mortiser
has been designed and built to extend its value by maintaining its
performance for many years under the demands of even busy
woodworking shops.
We begin with a heavy-duty cast iron and steel frame for stability,
accuracy and repeatability – not to mention long-term durability.
Precision machining insures accuracy and smooth operation. The liberal
use of cast iron gives the JET JFM-5 Hollow Chisel Mortiser a
stabilizing mass of 267 pounds.
The JET JFM-5 Mortiser is
as tough as it is accurate
and versatile.
The massive powerhead casting slides on oversized dovetail keyways
that feature easy to use Gib screw adjusters that allow the user to
compensate for tiny amounts of wear should that occur in years to come. We also applied Gib
screw adjusters to the X –Y material table motions to provide ultimate control over feel and
long-term accuracy.
Base Cabinet
The JET JFM-5 Hollow Chisel Mortiser is mounted atop an all-steel,
enclosed base cabinet. The cabinet is 14”-wide, 16”-deep, 23 ½”-tall and
features an internal storage area for chisels, related tools and accessories.
The base cabinet puts the JET JFM-5 Hollow Chisel Mortiser table
surface at a comfortable 31 ½” height above the floor. The overall height
of the JET JFM-5 Hollow Chisel Mortiser on its base cabinet is 61”.
If mobility is a priority in your shop, the JET JFM-5 Hollow Chisel
Mortiser
can be placed in one of our universal mobile bases (#708118). The JET
The all-steel base cabinet
has storage for the auger &
chisel sets and related
tools. Add one of our
universal mobile bases and
the JFM-5 easily goes
JFM-5 Hollow Chisel Mortiser can then be easily moved to the most
efficient workspace that is available.
where you can use it best.
Versatile Work Table
The JET JFM-5 Hollow Chisel Mortiser features a large 20”-
wide by 7”-deep cast iron worktable with a 3 ½”-tall fence at the
rear. A pre-cut and drilled MDF table surface board is included
that protects your bits when drilling through mortises.
The worktable has built in X-axis (side to side) and Y-axis
(front to back) movement functions that eliminate having to buy
an X-Y vise. Movement of the table in the X and Y-axis are
The large work table surface and the
adjustable stop make cutting several
mortises fast, easy and accurate.
individually controlled by 5”-diameter handwheels, each
with a spinner knob that speeds large changes. Tool-free
adjustable stops on the X-axis makes cutting multiple
mortises of the same size easy and accurate. We also
include a fully adjustable work stop that attaches to the top
of the fence from either side to make initial positioning of
the material quick and repeatable.
Because the worktable has a total movement of 16” on the
X-axis (left to right) and 4” on the Y–axis (front to back)
most mortise jobs can be clamped in place after initial
Large handwheels provide smooth, accurate
control over the table movements.
positioning and all further adjustments done with the handwheels. That is a huge time saver,
along with a boon to accuracy. The table movement gives the JET JFM-5 Hollow Chisel
Mortiser a maximum chisel center to fence clearance of 4”.
To hold the stock securely while mortising we added a heavy-duty
quick-adjust screw clamp with a huge 2 5/8”-tall by 8”-long cast
iron face. That face also has a pair of predrilled screw holes that
make attaching an auxiliary face or shop-built jigs simple. The
clamp is mounted directly to the table with a special pivoting
mount. Being able to pivot the clamp simplifies securing many
angled or oddly shaped work pieces, while the quick-adjust feature
allows for fast set-up and adjustments.
The large work vise has a special
quick-adjust feature, plus it can be
rotated to make clamping angled
or odd shaped work pieces much
Auger/Chisel Sets
easier.
Because so many woodworkers use one or two chisel sizes for their
projects, we do not include a set that would contain unused pieces that add to the price
unnecessarily. JET auger/chisel sets are available individually from your favorite JET dealer in
¼” (#6285526), 5/16” (#6285527), 3/8” (#6285528), ½” (#6285529) and ¾” (#708594), or in a 5
piece set (#708595).
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