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StewMac Ultimate Scraper

StewMac Ultimate Scraper

StewMac Ultimate Scraper Original

Original

Item # 0631
In stock, ready to ship!

$42.13

+
StewMac Ultimate Scraper Mini

Mini

Item # 0632
In stock, ready to ship!

$32.49

+
StewMac Ultimate Scraper Rectangle/Concave

Rectangle/Concave

Item # 0623
In stock, ready to ship!

$42.13

+
 
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StewMac Ultimate Scraper

About This Item

It's the best scraper we've ever used!
Revolutionary tools, unsurpassed for smoothing wood surfaces, arched instrument tops, bindings and more.

For an ultra-smooth wood surface, nothing beats a good sharp scraper. Veteran luthier Al Carruth has given the simple scraper a revolutionary makeover, with practical improvements for stringed instrument work: the original Ultimate Scraper. We added a second mini version that's popular for working in tighter areas.

Go for the rectangle/concave scraper when you need to keep a good, tight, square corner in binding channels and neck pockets. Also great for smoothing bindings and many steps of making a new neck. Thanks to renowned bass luthier Michael Tobias for suggesting this new shape!

  • Refined shapes are superior for arched tops and flat or curved surfaces.
  • 1/8" thickness adds stiffness and greatly reduces chatter.
  • Two working edges for scraping with both pull and push strokes.
  • Durable tempered steel edges, for smoothing harder woods.

At 1/8" thick, Ultimate scrapers are much beefier than standard scraper blades. Two cutting edges let the tool work in both directions, without flexing and with less chattering. That saves a lot of time and effort! The tempered tool steel holds a more durable edge, too. The shapes are specially refined for hand-contouring and graduating arched instrument tops and backs, as well as smoothing bindings and flat surfaces.

Dimensions
#0631 Original: 3-3/4" x 1-11/16" (95.25mm x 42.86mm)
#0632 Mini: 2-1/2" x 1-1/2" (63mm x 38mm)
#0623 Rectangle/Concave: 3-7/16" x 1-13/16" (87.31mm x 46.04mm); three straight edges plus 20"-radius concave edge

From luthier Al Carruth:
"In Il Segreti di Stradivari, violin maker Simone Sacconi wrote 'scrapers were made from blades of sabers. Since they were of very hard steel one could not turn the edge and therefore they were used like a knife.' When I began working with violin maker Carleen Hutchins she used such a scraper. This is, in my estimation, the best possible scraper for builders of arched instruments.

"It works on the same principle as scraping with a broken piece of glass; a common technique among carpenters. A very hard material can take an exceedingly keen edge and when it is perpendicular, as it is in broken glass, it can last for a long time even if the material is brittle. This tool has the advantage over glass of having a shape that is well defined and re-sharpenable."

How Al sharpens his scraper:
Sharpen the Carruth Ultimate Scraper on a grinding wheel"I find it easiest to hollow grind the edge perpendicular to the centerline of the scraper. Simply set the tool rest on your grinder perpendicular to the wheel and grind all around. Use as fine a wheel as possible and don't apply too much pressure. If desired, the edge can be further dressed on a fine stone with or without a guide block.

"In use, this scraper will give an extremely smooth cut even on soft or highly figured wood. It has little tendency to chatter due to its weight and does not heat up. It is much easier on the thumbs than a "normal" scraper as it is not "sprung" in use. To re-sharpen simply lap the surface on a fine stone and re-grind the edge."

Watch the video! Al Carruth shows how to use and sharpen the Ultimate Scraper. Watching Al, you'll see how easy this is.

Fast, simple sharpening for our Ultimate Scrapers (and more!)
The grinding wheel of our Mini Grinder for Ultimate Scrapers is the correct diameter for maintaining the hollow-ground edge of the Ultimate Scrapers. We also added a custom steel table to perfectly support the Ultimate Scrapers and keep them level while sharpening.

These beefy scrapers are thicker than standard scrapers, and with two cutting edges they present some challenges when it comes to sharpening. If you use our Ultimate Scrapers, then our Mini Grinder is the tool you need for a quick and accurate edge. The second wheel is an abrasive fiber that's useful for cleaning and deburring metal parts too.



CALIFORNIA PROPOSITION 65 WARNING
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.


Video

Instructions

Product Instructions

StewMac Ultimate Scraper Instructions

Scraping and sharpening instructions.

Customer Reviews

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5.0
  • 4.86 average rating from 202 reviews
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5.0

I love this scraper

By

Verified Buyer


This is the best scraper I've ever used. Perfect for arch top mandolin plates.

5.0

Wow

By

Verified Buyer


While building both a kayak and a StewMac instrument, one of the builders forums referenced this tool. On a whim, I thought “why not?” Yesterday I tried it out and now I’m wondering how I ever lived without it. This thing seems almost magical, just the right shapes, and it carved through hard stuff like butter.

5.0

necessary

By

Verified Buyer


The original model is the top! perfect for working on archtop guitars or related instruments; I thought; given the thickness, it was difficult to handle, but no! seems to have in your hands a common scraper but four times more powerful, to be purchased together with the mini grinding wheel to optimize sharpening times

5.0

Excellent

By

Verified Buyer


Bought to use on Indian rosewood best scraper,s I’ve ever used no comparison to the usual thin ones you could only get

5.0

Interesting tools!

By

Verified Buyer


I haven't had a chance to use these yet, but I like the fact that they aren't all strait edges.

5.0

Great Scraper

By

Verified Buyer


These are great scrapers for carved instruments. Easy to sharpen and a pleasure to use.

5.0

Never going back

By

Verified Buyer


I bought these scrapers a couple of years ago, but never got around d to trying them as I was happy and comfortable in Using the old scrapers I was used to. Recently I was carving the plates on my first archtop and decided to give these a try. These are sooo much easier on the hands, and do an amazing job. They also stay sharp for a long time. I will probably pick up another set just in case they get discontinued, as I never want to go back to my old scrapers

5.0

Best scraper I've ever used.

By

Verified Buyer


I'm not a luthier but a general woodworker. Over the years I've had a love/hate relationship with scrapers because the edge doesn't last and the need for "springing" the card is hard on your hands, especially as you grow older. Just after receiving the StewMac scraper I picked a strip of red oak out of my scrap pile and refined a rough-sawn edge to glass smootheness in just over a minute with no stress on the hands. Every woodworker should have a set of these.

5.0

A must have tool

By

Verified Buyer


This scraper replaces reams of sandpaper. I rarely sand at all now until shooting finish. The large curved one is my main scraper, use it on guitar bodies, tops and sides, electric and acoustic, I am carving a mandolin currently and this works great for leveling after finger planes. I find it easier to control than flexible scrapers, and the coarse scrapings make less mess. The curves work great on concave surfaces and the flat is just what's needed for guitar sides and top.

5.0

I'd wear one as a piece of jewelry, and will gift one to my child one day, even if they hate guitars

By

Verified Buyer


Literally the greatest tool in the history of toolage. If you have anything negative to say about this scraper, it's because you didn't buy it's most beloved friend, the Mini bench-top grinder/sharpening wheel thingy. That thing deserves to be mentioned, because combined with these scrapers, It's like a fine razor on an already balding surface. I've essentially cut most of my sanding down to 80% of what it once was (not on my head, mind you). I've debated on buying the mini one and wearing it as a pendant around my neck, kind of like Flava-flave, because this thing is GANGSTER. I wish they made personalized, gold plated ones, even though that isn't my style, I'd seriously consider one.

IF YOU'RE DEBATING BUYING THIS, BUY THE MINI BENCHTOP SHARPENING WHEEL, AND BE PREPARED TO HAVE YOUR MIND BLOWN. I use it on every single surface prepping job at this point. I don't understanding a rolling pin sander for pretting acoustic sides, when this thing will do the same task with a fraction of the dust and in no time. I can't believe how quickly I can go from 100 grit to mirror finish. I feel ridiculous sanding my surfaces @ 320 because it introduces scratches. This is a no joke do-all scraper. SO GOOD.

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