I've smashed a lot more aluminum faster than I could with a non-cob milling cutter of the same size and material. It's not broken or blunted yet. Got what I paid for.
Autotoolhome High-Speed Steel Straight Cutter
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πͺ AFUNTA 4-Flute 0.08" Milling Bits
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Chest freezer Biryusa 155KX, white
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POWERTEC 62-Inch 8-Inch Blade - Model 13132X
12 Review
Olson 80 Inch Blade FB14580DB-025