• Quality wood lathe turning Mahoney bowl gouge tool made in America
  • Mahoney Parabolic Shear Shaper
  • https://www.youtube.com/watch?v=Z49Ta_hDXu4&t=1s
  • Mike Mahoney wood lathe turning tools.
  • Quality wood lathe turning Mahoney bowl gouge tool made in America
  • Wood lathe turning tool by Carter and Son Toolworks and Mike Mahoney.
  • Quality wood lathe turning Mahoney bowl gouge tool made in America
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Mahoney Parabolic Shear Shaper

$ 114.98

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  • Overview
  • How This Tool Is Built
  • Priority Shipping. Free Returns.


Designed for efficiently shear scraping the exterior of your next bowl to remove imperfections and refine the surface. The long grind, with a convex surface, helps make contact with the exterior of the bowl. 

What makes a 5-star shear shaper?

  • 5/8” parabolic bowl gouge 
  • Shipped sharp with the grind found at Mahoney’s lathe (easily duplicated using a Wolverine jig) 
  • Double bevel reduces catches and unwanted marks on the cutting surface
  • Superior M42 high speed steel with a 10% cobalt content, for unparalleled edge holding 
  • M42 HSS' unique durability and razor edge mean less grinding and cleaner cuts
  • Unmatched flute polish boosts the razor edge and provides efficient chip flow
  • Put comfort and control first with an interchangeable aluminum handle
  • Handcrafted in the USA, and backed by a lifetime guarantee and hassle-free returns

The Specs

  • Parabolic flute, swept back grind at 35º
  • Blade measures 5/8” outside diameter x 13” overall
  • 5/8” tang diameter
  • 16” or 20" x 3/4” handle & 5/8” adapter

    How This Tool Is Built

    We start with the sharpest edge, and we don't stop there. Vanquish vibration, say adios to constant resharpening, and let wispy shavings fly. Delivering superior performance at your lathe drives our manufacturing. 

    We’ve worked with M42 high speed steel for 4 decades, and it’s uniquely suited to woodturning. You’ll grind less - a cobalt additive provides unparalleled edge holding. And the steel produces a finer, sharper edge for clean cuts. M42 is a win-win: less grinding and smoother cuts. 

    Our carefully sourced M42 starts as solid stock and is precision machined (not formed) with a unique round tang for unmatched strength. Every gouge sports a distinctive flute polish. This boosts the razor edge and provides efficient chip flow. Learn more about M42 HSS here.

    Rigorous and detailed sums up our manufacturing. Each tool’s vibration-demolishing round tang has a diameter so precise you’ll hear a ‘pop’ when you pull it out of the handle. And every tool leaves our factory razor sharp and backed by a 100% lifetime guarantee. Built to last!

    Rest assured our aluminum handles feel as great as they look. Perfectly weighted for balance and maneuverability, and designed to fit your hand. You’ll forget the handle is even there, in the best way possible. Two set screws secure your tool into the handle and allow removal for sharpening.

    From flute polish to handle knurling, we’re not cutting corners. Whether you’re just starting out, or have been turning for decades, it’s an honor to serve you with quality tools. Learn more about our story here

    Priority Shipping. Free Returns.

    Priority Shipping means your tool will arrive at your lathe shortly! Once your tool has undergone our rigorous manufacturing process, we ship via priority mail for speedy delivery to your lathe. 

    United States Over $275 - FREE Shipping
    United States Under $275 - $9.95 Shipping 
    Canada and International  Calculated during checkout


    Returns are hassle free. Give us a call or send us an email and we'll provide you with a return mailing label and complete refund.  

    Customer Reviews

    Based on 56 reviews
    Gary Ester
    Great Bowl Gouge

    This is a beautiful bowl gouge, it came very sharp and ready to use. I have two other tools from Carter and Sons and I love them both.

    Keith In Oakland
    I love C&S tools

    I think this is my 5th tool from these excellent folks. I love their steel. I bought the Mahoney Parabolic Shear Shaper because I find parabolic fluted gouges easier to sharpen than a vee. I also prefer Stuart Batty's 40/40 and Richard Raffan's asymmetrical grinds to the Mahoney but it's easily changed. It's a good tool. I'm sure it will last a while. Happy turning!

    Great tool

    The tool itself is well balanced has a great edge on it right out of the box. The sharpening instructions that came with it are very good. They are very easy to follow. The tools ability to smooth out the ripples in or out of the bowls I make saves so much sanding time I will find it difficult to work with out it.

    Randy Miller

    Great product

    Steve Epperson
    Shear Shaper

    Like all Carter tools, it was ready to use the minute I took it out of the shipping tube. I got this to replace the Ellsworth bowl gouge that I had worn down to a nub and did a lot of shear shaping with it. The first thing I noticed was that the wings were swept back a lot more on the Mahoney gouge and with a 35 degree bevel, looks more like a spindle gouge than a bowl gouge. Nonetheless, it cuts like a charm and is great for shear scraping. As a small experiment, I did a little regrinding using my Ellsworth grinding jig (about 55 degrees) and so far I love that. Got a nice clean cut on the inside, end-grain of a bowl. In the end, good purchase and look forward to using it more.

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