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Master Your Mortiser Maple Valley WA

To create perfect mortises, the chisel must be parallel to the fence. It’s easiest to place a board against the fence, move the fence forward and pivot the chisel until its face is flush with the board.

The Home Depot
(253)638-0258
27027 185th Ave SE
Covington, WA
Hours
Mon-Sat: 6:00am-10:00pm
Sun: 7:00am-8:00pm

Edensaw Woods
(253) 216-1150
8032 South 194th Street
Kent, WA

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The Home Depot
(206)575-9200
6810 S 180th St
Tukwila, WA
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Mon-Sat: 6:00am-10:00pm
Sun: 7:00am-8:00pm

The Home Depot
(425)391-8467
6200 E Lke Samammish Pky
Issaquah, WA
Hours
Mon-Sat: 6:00am-10:00pm
Sun: 7:00am-8:00pm

Woodcraft - Seattle
(206) 767-6394
5963 Corson Ave. S.
Seattle, WA

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The Home Depot
(253)852-1017
26120 104th Avenue SE
Kent, WA
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Mon-Sat: 6:00am-10:00pm
Sun: 7:00am-8:00pm

Rockler Woodworking and Hardware #15
(206) 244-9161
345 Tukwila Parkway
Tukwila, WA

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Home Depot
(425) 391-8467
6200 E Lake Sammamish Pkwy Se
Redmond, WA
 
The Home Depot
(253)661-9200
1715 S 352nd St
Federal Way, WA
Hours
Mon-Sat: 6:00am-10:00pm
Sun: 7:00am-8:00pm

The Home Depot
(425)451-7351
325 120th Ave NE
Bellevue, WA
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Mon-Sat: 6:00am-10:00pm
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Master Your Mortiser

Master Your Mortiser

Shop-tested techniques guarantee great results

by George Vondriska

The first time I used my benchtop mortiser was almost my last. It was tedious to set up, difficult to operate and my results stunk. But now the mortiser is my first choice whenever I have mortises to cut. It turns out the problem wasn’t the machine—in fact, the newest benchtop mortisers do a great job. Instead, the problem was my inexperience. I discovered there’s a learning curve to successfully setting up and operating a mortiser. 

Read on to learn the techniques I use to get consistent, professional-quality results from my mortiser. If you follow these methods and mortising is still a struggle, your machine’s fence and hold-down may need tuning. 

The hollow chisel and auger bit work together to cut square mortises. The auger drills a hole and then the chisel squares the corners. Chips produced while cutting are lifted by the auger and ejected through holes in the chisel. 

Start Sharp, Stay Sharp

You’ll get better results with less effort if you take a few minutes to sharpen your bit and chisel before each use.

Sharpen the auger’s flutes with a small auger file (this one’s from Nicholson’s miniature file set #42030, about $17 at Amazon.com). An auger file has smooth edges that won’t harm adjacent surfaces during close work. Hold the file flat on the bevel and move it forward only, toward the cutting edge.

Sharpen the chisel’s inside bevels with a round slipstone (about $15 at woodworking specialty stores).

Hone the outside faces on a flat stone, using even pressure and a circular motion.

Insert a DIme to Install the Bits

To work properly, the auger must slightly project beyond the hollow chisel. Here’s an easy way to achieve the perfect projection. Temporarily install the chisel with a dime squeezed between its shoulder and the machine. Then lock the auger in position with the edge of its cutting flute even with the chisel’s tips. Remove the dime, slide the chisel’s collar tight to the machine and lock it.

Instantly Align the Chisel

To create perfect mortises, the chisel must be parallel to the fence. It’s easiest to place a board against the fence, move the fence forward and pivot the chisel until its face is flush with the board. 

Arches Set the Depths of Cut

Mark the tenon’s length on the end of the workpiece. Then lower the chisel. Lock the depth-of-cut stop when the tops of the chisel’s arches are even with your line. This method assures that your tenons will seat properly, because it automatically creates a mortise that’s slightly deeper than the tenon’s length. 

Stay Cool

Make life easier for the chisel and auger by spritzing them with cutting lubricant before each use.

Click here to read the rest of the article from American Woodworker