- What is the best bit for cutting a pocket into a paving stone and engraving letters
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What is the best bit for cutting a pocket into a paving stone and engraving letters
Hello all. I am making a "grave stone" for a pet that has past and I have been commissioned to create a grave stone for the garden. I will be creating a pocket to place a clay paw print in (about 2 1/2" in diameter) and putting a name and dates on it. Nothing real fancy. I have a lot of old 1/4" end mill CNC bits used for wood projects, but not sure if they will cut it. The pocket only needs to be about 1/2" deep and the letters 1/8" at the most. Will my old bits do the job or should I get a different bit for this? Thanks in advance for the help. Stacey
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Re: What is the best bit for cutting a pocket into a paving stone and engraving lette
Paving stone - but what material?
Many softer stones can be cut with (good) solid carbide. The cutter might not be useful for aluminium and plastic afterwards though.
For harder stone, up to basalt (Mohr 9), you can use diamond cutters. They are not that expensive if bought from China or HK.
A caution however if you do use diamond: the cutter must be covered in water or the diamonds will rip out. Either full flood or immersion.
High RPM are good, along with shallow cuts and low speed. Learn as you go.
Cheers
- What is the best bit for cutting a pocket into a paving stone and engraving letters
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