This is the holder for the CM series of ScanNCut Standard Blade. This is generally used for everyday cutting on your CM Series. You’ll need the Standard Blade too.
This standard blade holder is handy to have as an extra blade just for fabric. Like thise good scissors that no-one is allowed to use, you’ll want an extra good blade for fabric cutting on your ScanNCut too. You’ll need to purchase the Standard Blade to use with this also. Can also be used on your DX model but isn’t really necessary in most cases (turn off Auto Cut and set manual blade pressure settings).