6 Best Mortising Machines | March 2017

We spent 33 hours on research, videography, and editing, to review the top choices for this wiki. For precise measurements and a clean finish to all your square or rectangular holes in your next DIY or commercial lumbar project, check out these top quality mortising machines. Skip to the best mortising machine on Amazon.
6 Best Mortising Machines | March 2017


Overall Rank: 3
Best Mid-Range
★★★★
Overall Rank: 1
Best High-End
★★★★★
Overall Rank: 4
Best Inexpensive
★★★★
6
The Shop Fox W1671 Heavy-duty mortising machine has double support columns that help ensure accuracy and stability, and a unique swiveling base design that makes it easy to place the chisel right where you want it.
5
Great for the home enthusiast, the WoodRiver Bench Top Mortiser handles most smaller jobs without a problem, thanks to its 1/5 HP motor. It has a decent spindle speed of up to 1,275 revolutions per minute.
4
The DELTA 14-651 Professional Bench mortising machine has been well designed for ergonomic use, so its operator will experience little fatigue. The 1,750 RPM feed rate is a bit slow, but it leads to focused work of good quality.
3
The Jet 708580 JBM-5 Mortiser is a benchtop model that can be moved by just one person, provided they're in decent shape. It weighs in at just under 45 pounds. The unit has two hinged steel doors allowing for chuck access.
  • ideal for home use
  • large 4" chuck key
  • reversible column for larger stock
Brand Jet
Model 708580
Weight 53 pounds
2
The sturdy cast iron construction of the Powermatic 1791264K Tilt Table Mortiser makes it extra durable, so it stands up to commercial use day after day. It tilts to anywhere from 0 through to 35 degrees.
  • gas-filled shock for smooth mortising
  • quick adjust clamps
  • tilting head unit
Brand WMH Tool Group
Model 1791264K
Weight 271 pounds
1
For such a powerful machine, the Makita 7104L 12-Amp Chain mortiser is surprisingly lightweight and portable, given its abilities. It also sets up quickly, so you can get right to work without wasting time.
  • chain capable of 1,100 ft per minute
  • handy externally accessible brushes
  • adjustable levers allow quick changes
Brand Makita
Model 7104L
Weight 49.7 pounds

Understanding Mortising Machine

Mortising is the act of putting a hole or recess into one item so that a tenon can fit inside of it. The technique gets its name from the mortise and tenon joint, one of the most commonly used joints by woodworkers. Through this method, two pieces of wood are usually connected at a 90-degree angle. If one wanted to build a table, they would have to mortise a leg before attaching it to the top. A mortising machine uses a motor to drill a rectangular or square hole into a piece of timber.

The user attaches a drill bit that corresponds to the size and shape of the hole they need to the motorized rotator on the machine. When they turn the machine on and place the bit on the timber, it creates a clean, symmetrical hole that is ready for a tenon. Depending on the project, the user may want more or fewer rotations per minute. A mortising machine also has a base that clamps onto the timber so that the wood stays still while the hole is put in place. Some models offer bases that swivel so the user can rotate the piece of timber and drill holes in different areas, without having to take it out and reposition it.

There are three main types of mortising machines: the square chisel, the horizontal (or slot) and the chain. The square chisel model resembles a drill press in its fixed style. It contains a chisel that ensures clean and straight edges and a drill that creates the hole. The horizontal mortiser has a router mounted on its side, and a workpiece attached to a multi-axis sliding table. This type of machine is best for floating tenons, which are created when two pieces of wood have corresponding mortises that must be attached via a third piece of wood. Chain models are best for large scale construction projects. They use chainsaw-style rotating cutters that simultaneously hold onto and cut the piece of wood.

Woodworking Safety Tips

Any woodworker, professional or a hobbyist, should wear goggles, a dust mask, and ear protection. If a tiny piece of wood flies into one's eye, it can cause severe damage to the cornea. Dust in the lungs may sound harmless, but it can be very dangerous. Because dust particles are so small, they can make it past your body's initial filters, like the nose and throat. Dust from a workspace can also contain toxins and fungi that can cause several infections like histoplasmosis, Q Fever or psittacosis.

Those new to woodworking might be shocked by how loud their equipment can be. That noise isn't only a nuisance, but it can cause damage to one's hearing, which is why wearing some form of ear protection is important. In fact, power tools are listed as some of the top items that can cause hearing loss. There are a few things woodworkers should not wear, like scarves, ties or long jewelry. If these items become caught in a mortising machine, they can quickly pull the wearer towards the cutters which can result in serious injury.

Don't keep electrical cords on the floor. If someone were to trip on these, they could knock over active cutting machines causing in injury to you or others. One should also never walk away from a machine that's been left on, nor should they use a tool until it is running at full speed. Tools are designed to give the user complete control only once they're running at their intended speed. Using one before that can cause the material being worked on to slip.

The History Of Woodworking

Woodworking is a craft nearly as old as humankind. Anthropologists who studied tools used by neanderthals found that even these ancient ancestors worked with wood. The oldest manmade wooden artifacts on record are 400,000-year-old spears that were found in the German town of Schöningen. Germany is the site of several ancient wooden artifacts, including coffins from the Bronze Age and animal statues from the Iron Age.

Ancient Egypt is also thought to have been a pioneer in woodworking. Copper and bronze tools have been found from 2000 BCE that historians believe were used for carving wood. Woodwork shops are also depicted in Ancient Egyptian drawings. People from the predynastic period (spanning the earliest human settlement to 3100 BCE) likely used mortise and tenon joints. This culture quickly deforested the Nile valley, and by the time the Second Dynasty was founded, they needed to import wood.

The Ancient Romans relied on wood as their main building material for most home construction. They used it to make pipes, waterproofing materials, tools, dye, and, of course, heat. The Roman architect Marcus Vitruvius wrote a full chapter on timber in his book "De Architectura," written sometime between 30 and 15 BCE. Ancient China also boasts a book on woodworking. A man named Lu Ban, who likely lived sometime between 771 and 476 BCE, allegedly wrote the book "Lu Ban Jing," in which he introduced the concept of the plane and chalk lines.



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Last updated: 03/28/2017 | Authorship Information

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