What size file do I need to sharpen the chain on my BLACK+DECKER chain saw? Support January 20, 2021 20:31 Updated Follow You will need to use a 5/32" or 4 m file. LH1600 Sharpening.tif 50 KB Download Related articles What kind of chain is used on the pole pruner, and what size file can I use to sharpen the chain? What type of chain is used with the pruning saw and what size file can I use to sharpen the chain? Comments 0 comments Please sign in to leave a comment.