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If the area is criss crossed with vertical and horizontal lines then its called checkering.

If it's vertical lines only, then it would be called serrations.

If its indentations, then it's called stipling.
 

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Then it is called titing!!!
 

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This is little bumps in rows/columns 8x20. Not innies but outties, rising above the surface.
Do they form blocks or pyramids? If so, it is checkering. Just like a checkerboard you get repeated patterns of squares. Stippling is usually dots. Or random wavy lines.

Checkering is done with a checkering tool which has evenly spaced cutting teeth. By running the tool horizontally and then again vertically it becomes checkering. Process has more than likely been replaced largely by CNC machining or casting now.

Stippling on metal was usually done with a punch and a hammer.

So there is usually a lot less precision to stippling.

With polymer frames stippling is often done with a soldering iron.
 

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This is little bumps in rows/columns 8x20. Not innies but outties, rising above the surface.
A polymer mold job?

I have to ask, what is that firearm in your picture in the OP? It does not look like 1911.
 

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Discussion Starter · #13 ·
Do they form blocks or pyramids? If so, it is checkering. Just like a checkerboard you get repeated patterns of squares. Stippling is usually dots. Or random wavy lines.

Checkering is done with a checkering tool which has evenly spaced cutting teeth. By running the tool horizontally and then again vertically it becomes checkering. Process has more than likely been replaced largely by CNC machining or casting now.

Stippling on metal was usually done with a punch and a hammer.

So there is usually a lot less precision to stippling.

With polymer frames stippling is often done with a soldering iron.
This is like dots, half spheres.
 

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If that frame was cast, those could have been in the original mold.
Stipple the mold, and you get bumps on the product.
 
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