Cornering Tools

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Forum topic by JADobson posted 05-27-2015 02:04 AM 1267 views 0 times favorited 17 replies Add to Favorites Watch
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656 posts in 1527 days

05-27-2015 02:04 AM

Topic tags/keywords: cornering

Has anyone ever used a cornering tool like one of these:

Have you used it on end grain? Does it work well over end grain? I need to put small round overs on the ends of some 5/8” x 5/8” boards. If you have any other ideas that might work (Hand tool solutions preferred).

-- James

17 replies so far

View TheFridge's profile


5669 posts in 902 days

#1 posted 05-27-2015 02:14 AM

I just round over and chamfer with a block plane.

-- Shooting down the walls of heartache. Bang bang. I am. The warrior.

View CharlieK's profile


455 posts in 3209 days

#2 posted 05-27-2015 02:37 AM

Hi James,

I have never used one of those, but I think the Fridge is right. With a block plane you have great control over the depth of cut. Not so sure about this. I would love to hear from someone who actually HAS used one of these.

-- Adjustable Height Workbench Plans

View JADobson's profile


656 posts in 1527 days

#3 posted 05-27-2015 03:06 AM

Normally I would use a block plane but I’m needing to round over 5/8” of end grain. With it being that short I have very little to reference the plane off of.

-- James

View TopamaxSurvivor's profile


17569 posts in 3092 days

#4 posted 05-27-2015 07:08 AM

I have one. Used a a few times long ago. It gets the job done, but watch the grain direction ;-) I’m sure I used it on end gran going around the project, but can’t really say much as I do not remember any details. The thing I remember most is taking the lazy man’s way out and getting it sharpened before they shipped it. I was greatly disappointed in the sharpening job.

-- Bob in WW ~ "some old things are lovely, warm still with life ... of the forgotten men who made them." - D.H. Lawrence

View knockknock's profile


330 posts in 1589 days

#5 posted 05-27-2015 08:40 AM

Normally I would use a block plane but I m needing to round over 5/8” of end grain. With it being that short I have very little to reference the plane off of.

- JADobson

In that case, I would probably just use a file. Push / pull it with the grain, not across, not against.

Or just use sand paper on a block.

View waho6o9's profile


7114 posts in 1993 days

#6 posted 05-27-2015 12:11 PM

How about a spokeshave?

Or one of those round over planes?

View Smitty_Cabinetshop's profile


13565 posts in 2035 days

#7 posted 05-27-2015 12:30 PM

I have a pair of cornering tools. Would not recommend them as ideal for end grain.

-- Don't anthropomorphize your handplanes. They hate it when you do that. -- OldTools Archive --

View waho6o9's profile


7114 posts in 1993 days

#8 posted 05-27-2015 01:22 PM

View BinghamtonEd's profile


2263 posts in 1786 days

#9 posted 05-27-2015 01:50 PM

I have the set in the second picture you posted. I got it, unopened, in a box of random stuff I purchased off craigslist, they were thrown in as an extra (got a spokeshave and a Wixey digital angle gauge for $20, so I consider the cornering tools as free). As Bob (Topamax) said, pay attention to grain direction. If you clamped a backer board to the workpiece to support the end grain, you may be able to use them.

I think you’ll get better results with any of the other options suggested here. If I need to round over an edge, I’m more likely to grab a block plane or spokeshave before I reach for the cornering tools. Mine just gather dust. If I didn’t get them for basically nothing, I wouldn’t get them at all.

I chamfered the top of my last toy box with a block plane. It was QSWO, and I clamped a backer board to keep the end from blowing out. It worked out well.

Edit : I think its funny that in the first picture, the tool is being used against the grain. I think the issue with these tools is that there’s nothing acting as a chipbreaker, so its more difficult to control how much bite the tool takes and you end up with a big sliver, as shown above. Much easier to control going with the grain, using the side of your hand in front of the tool as a gauge.

-- - The mightiest oak in the forest is just a little nut that held its ground.

View Bill White's profile

Bill White

4403 posts in 3377 days

#10 posted 05-27-2015 03:09 PM

I have had one that I got from the old AMT tool company, and have used it quite often. Surprisingly, it work pretty darned well if I keep it sharp.
I’ll do the end grain first (like with a router), then the long grain.


View DKV's profile


3940 posts in 1920 days

#11 posted 05-27-2015 03:11 PM

If I need to round over a board I use my router table. Am I missing something? Do you use hand tools only?

-- This is a Troll Free zone.

View JADobson's profile


656 posts in 1527 days

#12 posted 05-27-2015 03:35 PM

Thanks for all the help everyone. Sounds like the tool isn’t the right one for this job. I’m thinking knockknocks suggestion of using a file is probably best for my situation.

DKV, I have a router, no table (could make a temporary one), but I really prefer using hand tools.

-- James

View waho6o9's profile


7114 posts in 1993 days

#13 posted 05-27-2015 04:00 PM

I think a file would work quite well.

View Kazooman's profile


614 posts in 1369 days

#14 posted 05-27-2015 04:29 PM

I think he is going with the grain in the first picture. The tool cuts on a pull stroke. Could be wrong, but for that board I doubt it would make much of a difference.

View Tim's profile


3029 posts in 1378 days

#15 posted 05-27-2015 07:27 PM

I would use a file too. If you count strokes and stay consistent length for each and brush the file off each time you’ll have a nice consistent round over. A ratio that works well is 5 at 45 degrees to one at 22.5 and one at 67.5 gives a nice even curve. So basically cut the corner off with 5 then cut those corners off with one. Then do one or two where you lay the file almost flat and turn 90 degrees by the end of the stroke so you cover the whole curve evenly.

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