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  • Jet 708580 JBM-5 1/2 Horsepower Bench Mortiser
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Jet 708580 JBM-5 1/2 Horsepower Bench Mortiser

by Jet

List Price: $424.00
Price: $354.99 & FREE Shipping. Details
You Save: $69.01 (16%)
Only 8 left in stock (more on the way).
Ships from and sold by Amazon.com.
  • 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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9 new from $323.99 1 used from $315.00
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Frequently Bought Together

Jet 708580 JBM-5 1/2 Horsepower Bench Mortiser + Woodstock D2845-1/4-to-1/2-Inch Mortising Chisel Set, 4-Piece + Grizzly H7583 Tenoning Jig
Price for all three: $479.21

Buy the selected items together


Special Offers and Product Promotions

  • Bonus: Includes free 1/4-, 3/8-, and 1/2-inch chisel and bits, a $50 value, when you purchase this benchtop mortiser from Amazon.com.

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Product Information

Technical Details
Part Number 708580
Item Weight52 pounds
Product Dimensions22 x 13 x 11 inches
California residentsClick here for Proposition 65 warning
Item model number708580
Power Sourcecorded-electric
Voltage115 volts
Horsepower0.50 HP
Item Package Quantity1
  
Additional Information
ASINB0000223M4
Best Sellers Rank #136,034 in Home Improvement (See top 100)
Shipping Weight52.4 pounds (View shipping rates and policies)
ShippingCurrently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
Date First AvailableJune 22, 2008
  
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Product Description

Amazon.com

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.

Jet 708580
Dependable mortiser for home woodworkers or professional furniture makers (view larger).
At a Glance
708580 JBM-5
Bench Mortiser
At a Glance:
  • Powerful 1/2-horsepower motor for consistently smooth performance
  • Heavy-duty cast iron and steel construction

  • Long, multiposition mortising handle

  • Dependable rack-and-pinion head adjustment

  • Quick-adjust depth stop for uniform mortise depths

At a Glance

Features

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.

5-year warranty

Specifications

  • Motor: 1/2 horsepower
  • Spindle speed: 1725 rpm
  • Chuck size: 3/8-inch
  • Chisel shank capacity: 5/8- and 3/4-inch
  • Head stroke: 4-3/4 inches
  • Chisel center to fence: 3-1/2 inches
  • Fence size: 1-9/16 x 13-3/4 inches
  • Base size: 7-5/8 x 12-3/16 inches
  • Dimensions: 14.4 inches by 22.8 inches by 11 inches

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.

Jet 708580
Combines 1/2-horsepower motor for solid performance and a heavy-duty cast iron and steel construction.

Product Description

Mortising has never been easier or more accurate. Model JBM-5 JET Benchtop Mortiser features include: powerful 1/2 HP TEFC 1725 RPM motor for solid performance and trouble free operation, heavy-duty cast iron and steel construction for durability and stability, three jaw drill chuck with extended chuck key for ease of positive grip on mortise drill bit. Rack and pinion head raising and lowering allows for positive drilling control. Two hinged side doors to allow for complete drill chuck access. Removable safety toggle switch for prevention of accidental turn on 1/2" max. mortise chisel capacity. 4-3/4" head stroke. Includes free 1/4", 3/8" and 1/2" chisel and bit sets.

Important Information

Bulb Voltage
115 Volts

Customer Questions & Answers

Customer Reviews

It makes very clean cut.
C. Tang
As a professional woodworker I was looking for a machine with a low cost and good quality.
Oriain Woodworking
I am very happy with my Jet mortiser and do regret purchasing it.
kevan d western

Most Helpful Customer Reviews

123 of 123 people found the following review helpful By kevan d western on April 15, 2002
If you utilize mortise and tenon joints and have been creating them with a router or a drill press with a mortising attachment, you will really enjoy this product. There are several positive attributes about this tool and one negative.

Positive Attributes:
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.
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87 of 87 people found the following review helpful By Roy Brouwer on March 23, 2000
After having used biscuit joiners, dowels, and hand-made mortise and tenon furniture, I decided to invest in a powered benchtop mortising machine. After seeing and using various brands, I found the JET JBM-5 to be the best designed and most precisely built of the lot. The machining, design, simplicity of use are the best available for the novice-to-advanced woodworker. The hold-down bracket is designed to clamp evenly and the depth stop is easily adjusted without tools, unlike the Delta model. Another useful feature is the unit can be reversed on its base, allowing mortising of long objects--I built a clamping devise on the back of my mortising stand and can accomodate 36" long material for end-mortises or wide stock. The 2 year warranty should be more than adequate, given the history of other JET tools I've used--all running prefectly as designed.
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101 of 103 people found the following review helpful By Gerald B. Hatley on April 30, 2000
I have a Delta drill press and had used a mortising attachment for several years. It is quite difficult and time consuming to set up. I had wanted a dedicated mortiser and decided to try the Jet, and boy am I pleased. Basically, right out of the box you are ready to make great mortises. I attached it to an auxilliary table as described in the manual and began work. I am building an antique pie safe and am using very hard red oak lumber. The Jet tooled through the red oak like cutting through butter. I especially like the slow speed (1750 RPM) that the drill bit turns. You are assured that you will not burn the wood. The chisels are also incredibly sharp. I found it easy to set the work fence to center the work piece and properly setting the cutting depth adjustment is a breeze. All in all, a very fine tool. Very glad I bought it!
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82 of 84 people found the following review helpful By A Customer on September 6, 2000
I purchased the JBM-5 for a woodworking project that used 120 mortise & tenon joints. The machine itself appears very solid but there were a couple of finish problems. First, the spring-return chuck door on the left was not aligned with its recess. Second, the fence was not perpendicular to the base and required some shimming.
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.
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