The big difference between the Dualkut Mark 6 and the Mark 4 is that with the MK4 the ratchet is always on because it is built into the body, whereas the MK6 has a switch which enables you to use the ratchet action OR single cut action, so it gives you a choice.
With the MK4 the ratchet will activate unless the branch is very small. As the size of the branch increases and you need the help then the ratchet kicks in making it easier for you. If you have arthritis, RSI and/or weak hands the ratchet will give you four times your strength, giving you a lot more power.
With the MK6 you can have the ratchet on or off just with the flick of a switch. When the switch is positioned on the R the ratchet is on and it works the same way as the MK4 making it easier for you when cutting large branches and harder woods. When the switch is positioned on the S it is a single action secateur allowing you to work faster in the garden.
The maximum diameter in single cut mode is 15mm and in ratchet mode 25mm. When you flick the switch from ratchet to single cut action, firstly remember to squeeze the pruner handles closed then move the switch. This will ensure correct engagement.
The tool in this guide: MK4 Ratchet Secateurs | DualKut MK6 Ratchet Secateurs
