$359.99 Each
In stock

Jet® Benchtop Mortising Machine

Item #
81421
Rating:
92% of 100

Get solid performance with the Jet benchtop mortising machine.


Features:
  • Heavy-duty cast iron and steel construction provides durability and stability during use
  • Dependable rack-and-pinion head adjustment gives you accurate drilling control
  • Long, multi-position mortising handle let you reposition the feed handle for easier operation and optimum handle position
  • Three-jaw drill chuck keeps a positive grip on mortising bits with up to 3/8" diameter shanks
  • Two hinged side doors allow easy access to the drill chuck
  • Quick adjust depth stop for uniform mortise depths
  • Column is reversible for mortising larger stock
  • Removable On/Off toggle switch prevents accidental or unauthorized use of the tool
  • Powerful 1/2HP motor provides consistently smooth performance
  • Includes 1/4", 3/8" and 1/2" mortise chisel bits (also sold separately)

(1) Jet® Benchtop Mortising Machine
(1) 1/4" Mortise Chisel Bit
(1) 3/8" Mortise Chisel Bit
(1) 1/2" Mortise Chisel Bit
More Information
Brand Jet
Manufacturer Part Number 708580
Weight 51.0000
Tech Spec
  • Model Number: JBM-5
  • Brand: Jet
  • Height: 11"
  • Width: 14.4"
  • Length: 22.8"
  • Net Weight: 52.45 lbs
  • Spindle Speed: 1725 RPM
  • Chuck Size: 3/8"
  • Chisel Shank Capacity: 5/8", 3/4"
  • Head Stroke: 4-3/4"
  • Chisel Center to Fence: 3-1/2"
  • Under Hold-Down: 4"
  • Fence Size: (L x H) 1-9/16" x 13-3/4"
  • Base Size: 7-5/8" x 12-3/16"
  • Bushing Size: 5/8", 3/4"
  • Motor Power: 1/2 HP
  • Motor Voltage: 115 V
  • Prewired Voltage: 115 V
  • Motor Current: 6 A
  • Motor Phase: 1 Ph
  • 5 Year Warranty
Tech Docs
Dimensions 11" x 14.4" x 22.8"
Mortiser Head Stroke 4-3/4"
HP 1/2 HP
Mortiser Type Benchtop
4.6 / 5.0
11 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
7
3
1
0
0
Nice to have it
I like it , I bouth this machine little wow ago , still not use that much jet so far
User submitted image
User submitted image
September 2, 2018
Purchased
8 months ago
Woodworking Experience:
Beginner
Jet Mortising Machine
It was easy to use especially as I do noy have any mortising experience. I recommend it.
May 29, 2018
Purchased
4 months ago
I have had this machine for only a short while but I've cut a few dozen mortises perfectly. Worked great right out of the box. Only time will tell but I am very satisfied so far. I would recommend this product.
February 21, 2018
Purchased
7 months ago
Woodworking Experience:
Intermediate
This is a greT tool with few laughs mitations
February 6, 2018
Purchased
8 months ago
Woodworking Experience:
Advanced
Great machine for the money
August 8, 2017
Purchased
1 year ago
Woodworking Experience:
Intermediate
Outstanding value
Wanted to get an adapter for my drill press but saw to many poor reviews. I went to Rockler and picked this up.

Knowledgeable staff very helpful.

Great tool for the price. I used it to build a nail and screw free book shelve (looks Great). I used Walnut and the Jet made quick work of it. Cuts are clean and accurate.
One learning for me is to keep another piece of wood under the one you are cutting this give you a good clean edge on the bottom as well as the top. Move the extra piece to continue to cut into a new piece of wood.

Over a 100 cuts Great tool for the price
March 20, 2017
Purchased
1 year ago
Woodworking Experience:
Intermediate
This is my first mortising machine...
This is my first mortising machine and I have to say I am very pleased with its ability. I am currently building the not so big workbench from fine woodworking and this mortising machine did the job and well and the fact it came with three bits was only a plus good price and quality.
April 10, 2013
Good machine, works as advertised
I am so far pretty happy with it. I used it to make a few replacement sashes for some very old windows. I could have accomplished the mortises in a few different ways. I have been making due without a mortise machine for a long time. But I decided to buy this for a few reasons and I'm glad I did. The hold down works just fine the rack and pinion work fine and the long handle provides plenty of leverage. I left off half a star only because of the qualit of the drill bits and chisels that come it's it. Mine had pretty heavy machine marks on them and the edges were not so sharp. A few minutes spent on each chisel lapping them a bit smoother really helped to clean them up and the edges are now pretty sharp and held up well in the poplar I used for the project, poplar is not a good test for how well they will hold an edge but I did play in some white oak and they worked well in it. I plan to buy better bits and chisels from lee valley and I think after I do it will be a really handy set up to have in my shop.
December 8, 2016
Purchased
1 year ago
Woodworking Experience:
Advanced
Works very well.
March 15, 2016
Purchased
over 2 years ago
For the price you get a solid machine which works
Shipping, packaging, and delivery I ordered this on the 19th and chose 7-10 day shipping, I received it on the 23rd. It arrived in its own packaging no additional external packaging was needed. The unit is nicely packed in Styrofoam and arrived intact with no visible damage or missing parts. If you are carrying it on one shoulder and go to lift open your garage door, you might almost drop it and scare your pants off, not that I would know anything about that. It came with three bits 1/4, 3/8, and 1/2, which should pretty much join any 2 pieces of wood you're likely to need to join. Instructions and initial setup 95% of the assembly is done with your box cutter. It comes almost completely setup, the user only needs to attach the handle, a piston, the table, hold down and fence. You also need to chuck the bit and mount the chisel, but that should not surprise anyone. I set the unopened box down on my work bench at 6:24PM and made my first mortise at 6:59 PM. Instructions are clear and easy to read, but you could fold them into little boats instead of reading them and still be making dust in less than an hour. Setting up the cut Setup is straightforward, you adjust the hold down with a simple locking handle. The chisel is justified by squaring it against the face of your workpiece. You tighten a brass screw with a slot for a screwdriver to set the chisel. The fence adjusts forward and back through a hole on the column. This is the greatest design flaw in this system. The rod which supports the fence and allows it to be adjusted travels through one hole and is set with one set screw, so there is going to always be slop in all directions, up/down left right. You can control for this slop by setting the fence before you square the chisel, but you need to employ set up blocks on top of the work piece to then set the chisel, not ideal. Making mortises It's a dedicated mortiser, it makes mortises, fast. You'll still need to hand cut any mortise that isn't 90 degrees to the face and 90 degrees along the length. As with all mortising systems, the bottom of the hole is rough, but think of that as a glue reservoir and you've made lemonade out of lemons! I used the 1/2 chisel in a piece of cypress, and then immediately followed it up with black walnut to see if the harder walnut would throw off my calibrations or cause the bit to bog down. My settings held and I cut easily in the walnut, though I made a ton of smoke so I think I had the chisel set to the wrong depth on the bit. The sides of the softwood mortise were a little fuzzy, but I've embraced that reality over the years. The walnut on the other hand made a nice smooth wall against long grain and short grain. Best and worst parts Simple access to the chuck through two doors, solid metal construction throughout, quick initial setup, small footprint (handy for a tiny shop like mine) and makes lots of mortises fast! Touchy setup of the fence and need to use a tool to adjust the chisel. Capacity issues for workpieces of large size. Needs to be mounted to a surface or it will tip forward during use, not a terrible idea anyway, just a more stable base should have been a no-brainer.
January 25, 2015
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Why did you choose this?
Rockler Store
Based on the solid reviews it looks like its going to be a great addition to my workshop
Daniel S on Jul 28, 2018
Building new kitchen cupboard doors and need to mortise and tennon them for strength to hold the glass.
Gregory H on Mar 18, 2018
Based on the solid reviews it looks like its going to be a great addition to my workshop
Daniel S on Jul 28, 2018
Needed a product like this for my shop and after careful review of available products I felt this best suited my needs and price point.
George S on Jun 26, 2018
Building new kitchen cupboard doors and need to mortise and tennon them for strength to hold the glass.
Gregory H on Mar 18, 2018
I needed a Mortising machine and thought this was the best for the money and application.
Mike P on Mar 15, 2018
light weight better for my small place for now , plus its look good reviews for now ...
Sang L on Jan 14, 2018
Jet products have very good features and well as fair pricing
John S on Oct 6, 2017
Reviews indicated this was a better purchase than other similar machines. A little more expensive but better performance and quality. Hope reviews are accurate.
Richard L on Jun 11, 2017
Building a new project with lots of mortises.
Louisa A on Mar 6, 2017
I trust Jet tools for their reliability and quality. they also usually come at a price that works for my budget
Vernon T on Feb 25, 2017
Price point. This is my first Mortiser. I really wanted the Powermatic because of the T channels, but not worth $200 more.
David K on Jan 9, 2017
Strong reviews
John M on Dec 6, 2016
I needed a good quality machine to make precise mortises. Using the mortising attachment on a standing drill press is too cumbersome and ties up the machine. Reviews were good. Jet is a good brand.
Bruce B on Jan 19, 2016
router mortises not precise should have bought one long ago
Marc T on Jan 2, 2016
Previously purchased JET products - good quality
Debra C on Nov 30, 2015
I need a good mortiser, and the reviews were positive!
John H. H on Oct 8, 2015
Just thought it would be a fun tool to have... I was right about that
Chris S on Jul 15, 2015
Needed a product like this for my shop and after careful review of available products I felt this best suited my needs and price point.
George S on Jun 26, 2018
I needed a Mortising machine and thought this was the best for the money and application.
Mike P on Mar 15, 2018
What is the reach of the press? In other words, how thick would be the maximum size piece of wood, could you drill/chisel through?
Brian M on Jun 4, 2015
The switch does not work. Do you need a regular key that goes over the switch from on to off and reverse?
A C on May 3, 2015
BEST ANSWER: The Jet Mortising machine that I purchased does not have a reverse, the switch is an on or off type, if you haven't checked your outlet or extension cord, now might be the time.
I would like to drill a row of square holes spaced 4 inches apart into an existing oak floor. Will this machine work for this application?
John M on Aug 10, 2017
BEST ANSWER: If the holes are drilled before the flooring is installed.
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