SKU: 103221U Robust Unhandled Bowl Gouge - 3/8"

Name: Robust Unhandled Bowl Gouge - 3/8"
Brand: Packard Woodworks: The Woodturner's Source
SKU: 103221U
Price: 59 USD
Availability: InStock

$59.00

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Description
Specifications
Frequently Asked Questions

Robust 3/8" Bowl Gouge - Unhandled

Robust's 3/8″ bowl gouge features a parabolic flute and is made from premium nitrided high speed steel. It is shipped sharp and ground with a double bevel. Robust uses the American method of gouge measurement, which means the shank is 3/8″ diameter.

Parabolic flutes give a great combination of strength and chip ejection. They are amenable to finger nail (Ellsworth or Irish) grinds, conventional bowl gouge grinds and the “40/40” grind.

These tools are all offered unhandled. We offer Robust Collet Handles in 16” and 20” lengths. Alternatively, you may use the Oneway, Hosaluk, Sorby handles or make one yourself.

Parabolic Flutes: Robust's bowl gouges feature a parabolic flute. Parabolic flutes optimize three things: 1) a good size flute for chip ejection, 2) leaving enough metal in the gouge for good strength and 3) sharpenability for finger nail grinds, conventional grinds and the 40/40 grind.

What’s special about Nitriding? All of the carbide and HSS cutting tools Robust uses to machine these tools are Nitrided. Nitriding is not a coating or plating, but a diffusion wherein extra carbon and nitrogen are added to the base metal. This zone is up to .002″ deep. The result: significantly improved edge holding and reduced sharpening.

To make these tools, Robust starts with premium HSS sourced here in the US. After machining the tools to shape, they are heat treated 62-64 Rockwell C. The hardened tools then go through the Nitriding process, increasing surface hardness up to 75 Rockwell C. Because the treatment is diffused into the metal itself, it will not ﬂake, peel or chip. The tools are just as easy to grind as regular HSS, and sharpen well on conventional and CBN wheels.

But isn’t the Nitriding Removed during Sharpening? Gouges are sharpened on the end, and the cutting edge is defined by the intersection of the portion ground away and the flute. Since the flute is Nitrided, the cutting edge is also Nitrided. For scrapers, just grind the bottom bevel. This leaves the Nitriding on the top surface, so the burr is Nitrided. You’ll also like the radius on the corners of Robust's skews and scrapers, as this makes them more versatile for a number of different cuts.