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StewMac Ultimate Scraper

StewMac Ultimate Scraper

StewMac Ultimate Scraper Original

Original

Item # 0631
In stock, ready to ship!

$40.12

+
StewMac Ultimate Scraper Mini

Mini

Item # 0632
In stock, ready to ship!

$30.94

+
StewMac Ultimate Scraper Rectangle/Concave

Rectangle/Concave

Item # 0623
In stock, ready to ship!

$40.12

+
 
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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 Ultimate Mini Grinder 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 Ultimate 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
  • 4.85 average rating from 184 reviews
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4.0

Indispensable for the luthier!

By

Verified Buyer


I bought the original several years ago and its on its first regrind. This square and concave shape is perfect for final fitting of necks whether a dovetail or bolt on...

5.0

Great tool

By

Verified Buyer


One of those tools you wish you would have sprung for years ago!

5.0

you should get one !

By

Verified Buyer


Only 3 words: Best - scraper - ever !

5.0

Instant favorite

By

Verified Buyer


15 years ago I gave cabinet scrapers a try. The one I bought actually ended up wedged under the leg of a wobbly workbench for several years. I just couldn't get the hang of them and decided a good file and sandpaper could accomplish everything a scraper could without the headache. If I had had they Ultimate Scraper back then, that would have been a very different story. 15 minutes after pulling it out of the box I already know it's going to be one of my most used tools. It was so easy to get the hang of. I put it to the test, working some different surfaces of Curly Maple, Rosewood and finally Ebony. I made double handful piles of shavings of each. I went back to the maple sure that the Ebony would have dulled it enough that it would tear out the figure but it still made beautiful tight rolls of tissue paper thin curly maple.

I'd like to tell you about sharpening but I'm not going to sharpen a tool that doesn't need sharpening, and this shows no sign of needing it any time soon so...

5.0

Good stuff.

By

Verified Buyer


Fills the space between scraping and plaining. Love em that's for sure.

5.0

Exceptional scraper

By

Verified Buyer


I have found that the Ultimate Scraper (original) really works well!. I have used it for lots of things, but I found that it works best for detailing the binding on the edge trim on the acoustic guitar I am building. I sharpen it using a 360 grit 8" CBN wheel.

5.0

 scraping to get by

By

Verified Buyer


my scraping arsenal just added a big gun! it's now the first one I grab!

5.0

Ultimate scraper

By

Verified Buyer


Very sharp, nice weight and feel. Cuts clean.

5.0

Slick for leveling drop fills

By

Verified Buyer


I’ve used the Frank Ford/Dan Erlewine modified single edged razor blade technique for leveling finish drop fills for years. Recently it occurred to me—when I tired of modifying yet another razor blade—to try using one of the curved edges of the larger of the curved edge tools in this collection. I found I could easily control the cut, stay on the glue line and hog off excess glue more aggressively than with a razor blade tool...pretty much endlessly. The smaller curved edge scraper—with its tighter radii—is even handier for these sorts of narrow target, delicate scraping jobs. So far I haven’t needed to sharpen one of these so I still wonder how easy that will turn out to be. Still, I have used many card scrapers and sharpened miles of card scraper edges. I suspect I can figure out how to re-tune these too. That my aging hands prefer the stiffness of these tools over card scrapers makes the price even more reasonable.

5.0

Ultimate Scraper

By

Verified Buyer


Awesome, didn't know what I was missing.

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