Instruct: Classify a given review into positive or negative sentiment.
Query: Works with the ccs818 but buy the dremel chain saw sharpener first

Hi this is obviously a well made chain that takes sharpening well. It works with the highly popular black and decker ccs818. To get the most out of that saw I've purchased the silver series battery from lowes and the dual 1 hour quick charger from them as well. Along with a sharpened blade before use, this saw and chain really work.