They are double-cut style and have rows of cutting teeth in two intersecting directions for fast material removal and a rougher finish.. Shapes include ball, cone, flame, tree and cylindrical. Solid Carbide Burs have a long tool life and faster cutting speeds than other substrates.
.1-1/2in-11-1/2in NPT HSS 7 Flute Pipe Tap, Left Hand All Pipe Taps furnished with a 2-1/2 to 3-1/2 thread chamfer NPT threads require the use of a sealer like teflon tape or pipe compound.