Homemade glass cutter tool using old spark plug

**Mr.DK DIY** · Feb 19, 2021, 10:20 AM

NGK Spark Plugs ??? Do Not Throw Old Spark Plugs in the Trash !

**Fluffle-Valve** · Feb 20, 2021, 02:50 AM

As a child back in the 60's, we learnt that the ceramic part of a spark plug would break a car window if thrown at it hard enough.

**DIYer** · Feb 20, 2021, 03:34 AM

Thanks Mr.DK DIY! We've added your Glass Cutter to our Miscellaneous category,
as well as to your builder page: Mr.DK DIY's Homemade Tools. Your receipt:

Glass Cutter by Mr.DK DIY

tags: glass, cutting tool

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