I used this at home for my kids to sharpen graphite pencils (no color pencils). After several months it does not sharpen well. The blade never cuts evenly all around. I regret buying this product. I have purchased xacto blades and cutters before, no problem. This product is a dud. So disappointed. I now have to find another sharpener. Should have read the reviews on this one first. My mistake. I will never buy xacto again! No value for you money.