Structured-tooth carbide rasps & rifflers *LINK*
David Barnett
>As much as I love Auriou rasps, especially for fine modeling in boxwood and ebony, they are pricey. And while there's really no substitute for the finer Auriou grains, I've switched to structured-tooth carbide rasps and rifflers for most of my work. As they're damned near indestructable (I use them on marble, alabaster, plaster, wood, hard waxes, etc.), the prices are very attractive. Also, I like being able to quickly unclog them with my torch when shaping certain wood species. These are similar to the STCarbide rotary rasps but in traditional cabinetmaker, patternmaker, and sculptor shapes.
You can also buy carbide-coated Italian handcut rasps and rifflers (in the 10" double-ended Milano styles), which easily outlast the usual high-quality Italian handmades 3-to-1. If anyone's interested, let me know and I'll find the link.
Carbide rasps & rifflers