A ripping bar is primarly used for extracting nails from used lumber, or to separate pieces of wood that are nailed together.
ripping paper slicing bread trimming nails
you can oil it up
By chewing your fingernails, also by ripping and scratching your nails on rough objects like sandpaper. You also have to remember to use a nailfiller very good.
By drinking lots of milk, it strengthen nails
Delay biting your nails when you get the urge.
yes
No. The growing part is in back of your nails under the skin. The part that you paint is dead.
wear gloves
yes.
slap yourself when you do it
How to stop biting my nails