Aesculap have produced their own range of snap on style(A5 compatible) blades especially for the Duratti. Made from the same superior steel as the Fav 2 blades and designed to last longer than other similar blades. Fav 5 blades are also compatible with Andis/Moser/Oster/Wahl/Heininger professional clippers. 

Aesculap Cutter head SnapOn
Recognized quality for professional use
• The benefits at a glance:
• Very long edge-retention thanks to high-quality carbon steel
• high production quality thanks to Aesculap CNC machining centres, all parts are machined or profile-ground
• high-end surface treatment ensures high level of corrosion protection

Sold in Singles in 

#30, #15, #10,  #10WIDE(this one seems slightly wider teeth for easy feed of hair), #7F, #5F, #4F