yup, a duo-sharp 8" double sided DMT diamond hone weighs 3 or 4 ounces and is < 3/8 thick. It would take all the work out of sharpening up some loocal cutlery. A good 6" boning knife, carbon steel, ain't like being knifeless..and for the pocket, a folder you can affordibly replace, like an opinel. Don't own what's worth stealing and they won't.