Dandelions are a real nuisance, seeding themselves everywhere. The only way to really eradicate them from your garden is to prize them out before the seed.
This quality, traditional dandelion weeder from Burgon and Ball is made for the job from stainless steel and solid wood handle.
The sharp point penetrates ground easily whilst the notched V head allows roots to be cut off deep underground so they will not re-grow.
Endorsed by the RHS.