A tool which will captivate a hard masonary nail. This will then make a scraper for removing grout from tiles or a handy scriber.

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Print 1 x Body
Print 2 x Retainer

Preferably use a dia 3mm masonary nail because they are much harder than wood nails. If ithe diameter is tight use suitable drill to enlarge nail hole.

There is a ratchet adjustment which enables various length nails to be captivated.

Use by placing the curved body in a tile groove and pivot around this to make the nail gouge into the grout, sliding the tool backwards and forwards.

Withdraw nail into body when not in use to make tool safe.