All TOSCO Porting Tools are:

	Ground between lapped centers to ensure concentricity.
	Manufactured with hardened steel bodies.
	In most cases, easily flute sharpened between centers.
	Meant to be returned to TOSCO for sharpen, regrind or retipping.
	Available for special applications with minor changes to specifications. Most standard Tosco porting tools can be altered for quick delivery. When major changes to design are made it is usually best to have TOSCO design and build a special tool.

When ordering TOSCO porting tools, always mention the material you are cutting.