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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
  • 4.86 average rating from 169 reviews
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5.0

A heavy duty scraper!?! Finally!

By

Verified Buyer


I just got my Original Ultimate scraper today and already have cleaned all the mill marks from my F5 mandolin back plate. I normally use Lie-Nielsen thin yet strong scrapers and I've always thought that was what a good scraper was. WRONG!
The Ultimate Scraper send shavings, not dust flying, chatter is no problem, and the thick steel is a joy to hold. Well done Stewart-MacDonald! Home run on this tool!
P.S. My 15yr old son is using it right now on his personal mandolin back plate. The Ultimate Scraper has spoiled him on using another type of scraper!

5.0

StewMac Ultimate Scraper

By

Verified Buyer


Just goes to show you can build a better mousetrap ! I've used scrapers for a long time and this is the best tool for holding a sharp edge ever. Very smooth on delicate work.

5.0

So easy to sharpen!

By


I've loved this scraper for years, and I've probably written a review already...but I fell in love all over again after I just sharpened it. There's a vid on the stew mac site on how to sharpen it on a grinder and he's absolutely right: first, it takes a long time to really learn how to sharpen a traditional scraper. Second, any idiot like me can bring this scraper back to 100% in 20 seconds on my first try. Holy cow, this thing cuts beautifully!

5.0

This Tool Is A Must-Have

By

Verified Buyer


I have bought scrapers, and I have made scrapers, but I have never had one perform like this one. I would put this tool into the ,"How did I ever get along without one of these?" category.
I am currently building an F-Style mandolin with a maple back. This scraper is truly making life a whole lot easier. Good job, StewMac!

4.0

Is it just me?

By

Verified Buyer


This produced truly amazing results when new, and held the original edge for a long time, but I haven't been able to sharpen it to nearly that level. It still works pretty well, but nothing like when new. The sharpening process seems to depend a lot on the individual grinder, especially the diameter of the wheel and it's grit- I'm sure I've had the support set properly (and it's not easy). I've been tempted to try something with a small round file, but too lazy; I really hate filing.

5.0

Original Ultimate scraper

By

Verified Buyer


This tool also does an excellent job of dry scraping paint. I scraped a Strat body that had been sprayed five different colors (at least 15 coats) including the incredibly hard original Fender polyurethane, all in about 3 hours, with virtually no damage or marring of the alder wood body. Great tool.

5.0

This is very high quality tool

By

Verified Buyer


I truely love the results i can get with this scraper!

4.0

Great Little Tool but...

By

Verified Buyer


This is a great little tool that fits in the hand comfortably and is shaped to accommodate any project. The straight side,curved side and tapered side provide access to all surfaces. I'm not sure the other two scrapers are necessary. It will get you where you need to go just before final sanding. Mine however arrived with a fair chip out of one edge which had also oxidized. The face of the scraper also had surface rust on it. I can clean these up, I'm a big boy, but the place these are shipped from may want to lower the humidity.

2.0

Boo Hoo !!!!

By

Verified Buyer


Finally had the opportunity to use my ultimate scraper. it works but I'm not impressed could only turn powder. tried it on Mahogany tried it on spruce same thing just dust. now I have to buy a grinder to sharpen it.

Response from StewMac


Hi Rick,

Thank you for sharing your honest feedback with us, we genuinely appreciate that. We are sorry to hear that the StewMac Ultimate Scraper did not work for you as expected. If any of our products fail to meet your expectations, you are welcome to send it back for a refund, exchange, or store credit. If you can, give us a call at 1-800-848-2273 so that we can further assist you. We look forward to hearing from you.

5.0

Excellent tool

By

Verified Buyer


Used it to scrape acoustic guitar top, which was not flat.
Rounded corners let to scrape any part of the top without any problems.
Even not all edges was sharp enough, there was some edges, that worked very well.

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