Carter & Son Toolworks 1/2" Spindle Gouge Made in the USA! The Bowl Gouge is fitted with a relief edge which reduces catching. The tool blades are precision machined to high tolerances from solid M42 Cobalt High Speed Steel stock. Reinforced with the strength enhancing properties of Cobalt, M42 HSS maintains an edge extremely well, while still retaining easy sharpening properties. To further increase strength the blades are certified heat-treated to 68HRC.