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MC Etcher is our new diamond drag bit. It is perfect for fine line engraving on composites, metals, and glass.
MC Etcher drags a diamond-coated, spring-loaded tip over the surface of your material to create an etched or engraved pattern, it does not cut with flutes like a normal endmill.
IMPORTANT: The drag engravers are not meant to rotate so the spindle needs to be turned off when using MC Etcher.
Ships in a reusable storage tube.
MC Etcher is available in three variants:
All MC Etchers have a 1/4" Shank.
The 90-degree tip has better penetration in very hard or anodized materials.
The 120 deg tip provides slightly wider lines in softer materials such as fiberboard but has less penetration in harder materials.
We've tried the MC Etcher with a variety of materials and we don't find a lot of difference between the speeds and feeds that work for each material. We recommend these as a starting point:
Drag Bit Toolpaths
You have a couple of options to generate a toolpath for a drag engraver: