Got one of the Dewalt electric Chainsaws 18V or 54V?
Then these are your go to blade replacements or backups (Strongly recommended to have at least 1 spare if not 2).
30cm = 18V Chainsaw DCM565
40cm = 54V Chainsaw DCM575
TIP: Make sure you have the teeth going forward like in the product images when you install it onto your chainsaw.