SKU: 43171903940

TORK CRAFT HOLLOW SQUARE MORTICE CHISEL 1/2' 12.7mm MC04

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Description

TORK CRAFT HOLLOW SQUARE MORTICE CHISEL 1/2' 12.7mm MC04Hollow Square Mortise Chisel Size: 1 2 inch [12,7mm] Most mortisers are equipped to handle 1 4', 3 8', 1 2' and 5 8 square chisels. Converted to metric: 6,35mm, 9,5mm, 12,7mm and 15,9mm. Some are even capable of handling a 3 4' chisel, but keep in mind that this is a pretty healthy chunk to cut at one time and may require a lot of physical exertion. Remember that even if you're cutting a mortise that is 3 4' wide, you don't need to cut the entire

Hollow Square Mortise Chisel

Size: 1/2 inch [12,7mm]

Most mortisers are equipped to handle 1/4', 3/8', 1/2' and 5/8 square chisels.
Converted to metric: 6,35mm, 9,5mm, 12,7mm and 15,9mm.

Some are even capable of handling a 3/4' chisel, but keep in mind that this is a pretty healthy chunk to cut at one time and may require a lot of physical exertion. Remember that even if you're cutting a mortise that is 3/4' wide, you don't need to cut the entire width in one pass. A few cuts down one side of the mortise and then back up the other with chisel will be just as effective and not nearly as taxing on you as the operator.

Advantages:

  • Faster than a chisel by hand
  • Consistent in size
  • Strong joints
  • Reliable joints
  • Looks good
  • Large glue surfaces enhancing the strength
  • Convenient
The hollow square mortise chisel

The hollow square mortise chisel is used in a drill press attachment or mortising machine, similar to a drill press in many respects, combines the cutting of a four-sided chisel with the action of a drill bit in the centre. The bit clears out most of the material to be removed, and the chisel ensures the edges are straight and clean. This device was invented in 1874 by Robert and Ralph Greenlee.

Square chisel mortising bits can also be fitted to normal drill presses using a mortising attachment as shown on the left. [Click here to view] - Available from Tork Craft.

 

 

The chisel kit is made from a square, four sided chisel with an auger bit inside.  The auger bit is sized perfectly to fit inside the four sided chisel.  The machine spins the auger bit removing a circular column of material and the chisel comes up behind it to square away the rounded edges. The way the chisel works is through downward pressure by the user. The harder the wood, the more difficult it is to plunge down.  At the end of the process you get a really clean mortise.

Mortise and Tenon joints are strong and reliable joints. This joint can be seen in timeless furniture pieces and is testimony to its long-lasting capabilities. This joint gives support from all sides and has a large amount of glue surface.

When working on a project that calls for multiple mortise and tenon joints, hand-cutting them all would involve tedious hard labour, resulting with inconsistent joints. In a situation when you need to produce multiple mortises, there is no better option than a hollow-chisel mortiser.



MC04Clamps/Jigs > Square Chisel Mortiser > Chisels
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SKU: 43171903940

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4.9 ★★★★★
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Taylor McDevitt
Massapequa, US
★★★★★ 4
Does it's purpose with style
We used these in our pantry and dining room for shelves and they turned out well. The only reason they are hard to install is because of the design (which is very nice) so it is worth it. It just takes time when you you are hanging the shelves, to do it correctly. While they can hold a lot, we realized that a bunch of cans or jars cannot go on these shelves. Luckily we had another option for heavy items (Example: We had about 40ish pounds of cans/jars on a 1x12 board that is 33 inches long with 2 of these brackets...and it was too much). If you do not need to hold a lot of weight, these shelves are a for sure, for the price and quality. If you NEED they for something heavy, then you probably will have to go with something more practical from a hardware store. We LOVE them for our pantry!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 28, 2020
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Verified Purchase
FredsMyth
Boise, US
★★★★★ 5
Worked as intended
Hubby used these to mount a shelf above a long span of windows. They worked great and allowed a clean visual appearance.
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Reviewed in the United States on December 7, 2025
A
Verified Purchase
Amazon Customer
Charlottesville, US
★★★★★ 5
Nice brackets
These are nice sturdy brackets for butcher block shelf however they do bend a bit. We installed in a corner so was able to pin to side wall no problems on big shelf. The smaller shelf about 18” moves a bit up and down when loading. Now very little and no worries about it but not rock solid
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Reviewed in the United States on January 20, 2024
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Verified Purchase
PK
Chelsea, US
★★★★★ 5
Easiest shelf brackets ever!
Live these! They were great look good and we’re easy to install
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Reviewed in the United States on December 12, 2025
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Verified Purchase
Calichef
Charlottesville, US
★★★★★ 5
Sturdy Shelf Brackets
I really like these shelf brackets. They seem very sturdy, which is great for my laundry room shelves over the washer & dryer pair. It's going to be great to FINALLY have shelves for laundry supplies or "buyers' club" household items like 12-packs of paper towels or 36-packs of T.P. I can hardly wait to have my sons install them so I can fill them up!
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Reviewed in the United States on August 13, 2023

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