|Item Weight||62.5 pounds|
|Product Dimensions||22.8 x 14.4 x 14.4 inches|
|California residents||Click here for Proposition 65 warning|
|Item model number||708580|
|Item Package Quantity||1|
|Warranty Description||5 year limited warranty|
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Jet 708580 JBM-5 1/2 Horsepower Bench Mortiser
|Price:||$354.99 & FREE Shipping. Details|
|You Save:||$69.01 (16%)|
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- 1/2-horsepower bench mortiser; 115 volts; 1,752-rpm motor
- 1/2-inch chisel capacity; 4-3/4-inch head stroke; rack and pinion head
- Constructed from rugged cast-iron and steel
- Includes mortiser, three bits, chuck key
- 44 pounds; Backed by 5-year limited warranty
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Ideal for professional furniture makers as well as for home woodworkers, Jet's affordable 708580 JBM-5 benchtop mortiser features a 1/2-horsepower induction motor and is designed to take up to 1/2-inch chisel bits. The dependable rack-and-pinion head adjustment gives you accurate drilling control, while its heavy-duty cast iron and steel construction provides durability and stability for years of use.
At only 44 pounds, the Jet 708580 is sturdy but also easily maneuvered, plus it reverses on its base to allow for mortising in long stock. The 4-3/4-inch head stroke is great. Bits are easy to change. Just flip open the steel door on either side (other models on the market often have doors made of flimsy plastic) to gain easy access to the chuck. And, thanks to the 4-inch chuck key, there's little chance of banging or scraping your knuckles while switching bits.
The mortiser's feed handle adjusts so you can choose the most comfortable position for each application, and it also offers a quick-setting depth stop and a removable toggle switch that prevents accidental or unauthorized use of the tool. It's set on a heavy-duty cast-iron base with four predrilled mounting holes. Other features include a three-jaw drill chuck that keeps a positive grip on mortising bits for chisels up to 3/4-inch in size, two hinged side doors for easy access to the chuck, and a reversible column for mortising larger stock. It's backed by a 5-year limited warranty.
What's in the Box
One Jet 708580 JBM-5 benchtop mortiser, one hydraulic cylinder, one handle, 3/4- and 5/8-inch chisel bushings, one spindle extension, one chuck key, one table, hold down, fence assembly, screws, and owner's manual.
Top Customer Reviews
1) HP is quite adequate.
2) The chisels and bits I received were very sharp. They believe that they would serve the non-professional well. I usually use Clico bits, but I recommend that you at least try these before you purchase an expensive set. You might be as pleasantly suprised as I was and you could save yourself some money.
3) Fit and finish is very good.
4) The column mounts to the base structure with capscrews. The Jet engineers were thinking, because they provided two assembly hole patterns. The second hole pattern allows you to turn the head around 180 degrees. This will enable you to mortise stock one or two inches taller than normal designed capacity without a major setup changes.
5) Good quality for the price.
One Negative attribute:
If you have read any of the reviews of mortise machines, you will notice a common issue with bench top mortise machines is the hold down fixture. Jet is considered to have one of the better hold down fixtures. If you have used drill press with a mortise attachment you have lived the pain of setup and hold down. This machine is by far a huge improvement over a drill press attachment. However, this hold down fixture could also be improved. Mine is not parallel with the base surface or square with the back fence. This allows the stock to rack slightly when withdrawing the chisel from the mortise. It doesn't take much movement of the wood to bind the chisel in the mortise.Read more ›
There are some other annonyances, too. First, all of the chisel & bit sets still had rough machine marks and burrs on them. It took a lot of time and patience with a small file to get them into useable shape. Second, after the packing oils wear off, these chisels scream like a kicked cat until they come into contact with wood. Jet needs to find a better OEM for their chisel & bit sets (as Delta had with the Austrian chisel & bit sets included with their benchtop mortiser).
The adjustable fence is poorly designed (a problem that seems common to all benchtop mortisers save the Powermatic). Depth adjustment is poor, requiring a Zen-like concentration to adjust it to a precise depth. Also, the fence is, at the same time, too short for taller pieces (4"+ in height) and too tall for short pieces (which require shims to reach the hold-down on the fence). The ability to rotate the motor 180 deg to mortise taller pieces is definitely a nice feature. However, Jet did not provide any way for pieces to be supported in this configuration (I had to build a jig for this).
In all, the JBM-5 performs as advertised. However, all the little annoyances add up quickly. It still beats a drill press with a mortising attachment (or forstner bits), but there is definitely some room for improvement here.
Most Recent Customer Reviews
I've cut mortises with a chiesl, router table-then rounded the edges off the tenons/snapped bits, drill press mortise attachment, drill press with a forstner bit-cleaned up with a... Read morePublished 1 month ago by Pete
Works well and hubby loves it. Has used it for a year now and it's still going strong. He's a woodworker so if he's happy I'd recommend it to anyone who needs one.Published 2 months ago by Dreamer
Arrived in good condition and worked very good. I am very satisfied with this tool. My project right now is made from Hawaiian Koa which is very hard and dense,,,no problems .Published 6 months ago by Kenneth Kriner
Very limited height, table is too small. Otherwise, it is okay. Not a lot to brag about on this one. I'd do an internet search and find a better model.Published 7 months ago by Mississippi
I've always wanted one. Good quality and does the job just fine. Just remember take you time and do not force.Published 10 months ago by Mike Debany
Being new to woodworking, I've had to trust the reviews of others in trying to sort out which brand of tools to buy so I hope this helps other newbes. Read morePublished 10 months ago by Shawn H.
Works Well but in order to use a 5/8 ths bit I had to order a diffewrent chuckPublished 13 months ago by Carl O. Hamilton