Patent ID: 6845767

Claim:
An abrasive saw blade comprising: a metal core having a central axial bore for rotation in a given, singular rotational direction and having a plurality of uniform, spaced apart peripheral mounting sections separated by uniform radial notches; a plurality of abrasive segments of substantially uniform shape and size, and each having first and second ends, said segments being securely attached to said mounting sections of said metal core to form a bonding interface therewith of substantially uniform thickness with said first and second ends of said segments being at a preselected radius from said central axial bore; a plurality of projections integral with said metal core which extend outwardly from said peripheral mounting sections to at least register with and extend through said preselected radius of said bonding interface at the ends of said segments; whereby said projections provide undercut protection to said bonding interface between said segments and the mounting sections of said metal core to extend blade life and minimize premature segment loss; and a plurality of regions spaced apart from one another proximate said segments on each side of said metal core coated with a layer of wear resistance material, said layer being discontinuous.