Review on Metallic 8 Inch 2 Inch 4 Inch 10231 by Joshua Romero

This is the third Unibit of this size that I have owned in the last 10 years, it's not that it's poorly made it's just that I keep using it. This is the only bit I can use to cut the release liner if I don't have a hole punch this size (requires some trickery). It has so many uses and I keep finding new ones. I have tried other brands but in this style this is the longest of the non-shrunk conical bits from the big brands. I've run it at 7500 RPM and at 2 RPM on 1/8" titanium sheet (pre-punched starting hole) without incident. Unibits may seem expensive compared to HF or other cheap brands, but you get quality and durability with them ...