Unfortunately you're not likely to find the parts that you need to replace that cutter that unit brand new is not sold for more than about $30 I would simply suggest that you replace it since you cannot get the parts to service the razer
Norelco suggests changing the heads every 12 months for best performance. This is stated in the user manual that came with the shaver.
Replacements can be found at shaveroutlet.com. You will need the model number written on the shaver to properly identify the correct parts
