If your snow shovel tip is split and worn like the one below, you can save yourself from having to buy a new snow shovel by making a new tip using a piece of angle aluminium folded over. I used a piece of angle alumium from an old greenhouse. You'll also need a few tiny screw, around 6mm long.
Start by gently bending the edges of the angle aluminium towards each other.
Next I squashed it some more in the vice. After that I hammered the edged right over so that it will fit over the end of the snow shovel.
When it's done, it should look like the original(left) below :
Check that it fits snugly over the plastic part of the snow shovel.
Secure the metal part in place using some small metal screws. You'll need to drill a small pilot hole. If the screw protrude through the other side, add a few washers.