After dealing with several failed attempts to get my charcoal pencil points sharpened I did a search on google and found this invaluable video. If anyone else has some charcoal pencil tips, such as good sharpeners that don't break the delicate points, or a pencil brand that's tougher, please post here! By far my worst experience has been with "Pro Art" charcoal pencils - they are a nightmare when it comes to constant breaking and I hardly got any actual drawing out of them. It went more like this - sharpen, break, sharpen, break, sharpen, break - then when the pencil was down to half -size a miracle would occur and I could draw with it a little....before it broke again..
Charcoal Pencil Sharpening Demo