Not only suitable for soft wood. If you grind something else, they won't give a permanent pattern. Especially at the fiber end, the grain resists sanding, while softer woods sand easily, resulting in a "hills and valleys" texture. I found this disappointing as wood is one of the advertised uses for this product. It's a bit misleading in my opinion. It's probably great for other materials, but not wood.
π§ Efficient Astro Tools 1442 A32 Mandrel 4 20 for Precision Work
3 Review
π¨ Enhance Your Woodworking Skills with PSI Woodworking PKM FLC Maxi Mandrel Morse
3 Review
Effortless Sanding with Dremel EZ407SA Drum Sanding Mandrel
3 Review
π¦ A16010600Ux0647 Abrasive Sanding Sandpaper Mandrel" -> "High-Quality Abrasive Sanding Sandpaper Mandrel (Model A16010600Ux0647)
3 Review