Currently Festool's Domino series of mortising machines are each designed to work with their own size range of tenons. With the Domino DF 500 being designed for 4mm to 10mm tenons in smaller stock, and the Domino XL DF 700 designed for 8mm to 14mm tenons in larger stock.
Our 6mm cutters for the Domino XL DF 700 allow cutting mortises to work with tenons 6mm in size, up to 50mm deep.
We have these cutters precision ground on an 8 axis CNC cutter grinding machine. We have found them to be durable and cut well, however it's important to note that the Domino machines work differently than a biscuit joiner; Care should always be used not to plunge the cutter into the work surface too quickly or damage to the cutter and work piece can occur.
These 6mm cutters with their extended 50mm cutting depth are perfect for through tenons. However, for cutting 4mm/5mm/6mm/8mm/10mm standard depth mortises with the Domino XL DF700, we recommend our RTS-500 Domino Cutter Adapter.