Picks Frez R4/20 Frez R5/20 Frez R6/20 Frez R6/20 R Frez R7/20 Frez R7M/20 Frez R7R/20 Frez R8/20 Frez RX/20 Frez RX/20 HD Pick’s recommendation applicable to the machine’s power and the width of the milling drum: Model 300 – 600 mm 1000 – 1500 mm 1900 – 2200 mm R4/20 • R5/20 • R6/20 • • R6/20 R • • R7/20 • • R7M/20 • • R7R/20 • • R8/20 • RX/20 • RX/20 HD •