Looking for good gauge to measure angle for skew scraper

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Forum topic by kmetzger posted 11-10-2013 03:06 AM 1061 views 0 times favorited 6 replies Add to Favorites Watch
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145 posts in 1240 days

11-10-2013 03:06 AM

I have a Nova Precision Midi chuck and want to be able to form recesses for bowl bottoms. I haven’t been able to find a “skew scraper” anywhere, so I guess I’ll have to grind a 15 degree angle on a square end scraper (not a skew chisel). What I’d like to know is what kind of gauge would be best for measuring my angle?

The jaw dovetail has been designed for use with a standard skew scraper with 15 degree angle. FOR SAFETY REASONS WE STRONGLY ADVISE DO NOT USE ANY OTHER TOOL

-- Kim, Ajijic, Mexico,

6 replies so far

View BalloonGuy's profile


93 posts in 1346 days

#1 posted 11-10-2013 04:08 AM

Kim, I have a small (1/2”) skew chisel and the edge is ground at (or nearly) a 75 degree angle. I use this to do final forming of the recess for my bowl bottoms. I’ve done about a dozen this last couple of months this way, most with a 1/8” deep recess (the minimum – and I check it with a caliper depth-gauge) for turning on my SuperNova 2 chuck.

You should be able to use a standard protractor to check the angle of your scraper – though before you waste all that steel, give the skew chisel method a try.

-- Tom Peterson, Omaha, NE

View mtenterprises's profile


933 posts in 2115 days

#2 posted 11-10-2013 11:39 AM

Just make a full scale drawing of what you want to grind then grind away testing your tool often
to the pattern you drew. You should get to within a degree or so. Personally with my Nova chuck I just cut a recess in the wood with no tapper. I haven’t had any problems chucking up or the thing flying off. I think that dovetail thing is just a CYA thing for the company.


-- See pictures on Flickr - And visit my Facebook page -

View bondogaposis's profile


3972 posts in 1774 days

#3 posted 11-10-2013 01:23 PM

Take the miter gauge on your table saw and set it to 15°, then cut the end off of a piece off wood and use that to draw a line on the scraper with a sharpie marker. Grind to the line.

-- Bondo Gaposis

View lew's profile


11266 posts in 3178 days

#4 posted 11-10-2013 11:18 PM

I have the same chuck.

I took an old file and ground the angle on the side. I had to make a couple of test fittings to make sure the angle matched the chuck. Then, squared the end to the correct length. It has been working fine for me.

-- Lew- Time traveler. Purveyor of the Universe's finest custom rolling pins.

View Wildwood's profile


1854 posts in 1557 days

#5 posted 11-11-2013 02:36 PM

I have a Oneway chuck, and use bowl/spindle gouge, parting tool, or skew to cut recesses. Also, use my forstner bits some times.

Balloon Guy is right on the money, turn your skew on its side using long point of the finish cutting your recess as shown in FORMING RECESS ILLUSTRATION. All you need is some hand & eye coordination.

Many folks that bought these scrapers, let them collect dust vice use them.

Old files too brittle for turning tools without heat treatment which is too far above my abilities, so unless have metal treatment skills forget old files!

-- Bill

View mpax356's profile


66 posts in 1915 days

#6 posted 11-12-2013 09:19 PM

This is a good tool for measuring angles on turning tools

You can also find them at Home Depot or Lowes.

-- MPax, Atlanta

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