3/4 SUPER SPIRAL BURR

Great for roughing out full ports and pocket ports. Superchargers or anything that a LOT of metal needs to be removed.  Expert level required  does NOT work on cast iron or steel of any kind will NOT leave a smooth finish - you will need to go back over anything you grind with our 1/2 first VERY fast stock removal Made from Carbide not cheap steel that chips or bends easily Super spiral design  Dave's Take: This burr is the honey badger of burrs. It simply doesn't care how much material you need to remove; it is coming out and it is coming out VERY quickly. That is why it is for an expert level. This is the baddest burr on the planet.  The 3/4 burr is my go-to for almost everything. It shapes effortlessly and there is minimal need for lube.  I have multiple of these because I cut the two different lengths depending on how hard I am going to be porting, or if the runner is long or short. So, pocket port I would use a short 4 inch and a short turn I use the whole 6-inch length, so I ha