Blade head, blade and method for eliminating spacers in multiple blade stacks

A blade head for use in grinding or cutting that eliminates spacers between the blades of the blade head, the blade head comprising a stack plurality of circular blades forming an overall blade stack of the blade head, the stack plurality configured to rotate together about a head axis, the stack plurality forming the blade stack extending between a first stack extent and an axially opposite second stack extent, the stack plurality including a plurality of spacerless circular blades, each spacerless blade of the plurality of spacerless circular blades having a spacerless blade core with a first side core surface and a second side core surface that is axially opposite of the first side core surface, the first and second side core surfaces defining a blade core thicknesses, the spacerless blade core having a core thickness center between the first and second side core surfaces, the spacerless blade core further including a circumferential core extent extending about a spacerless blade axis wherein the spacerless blade axis is coaxial with the head axis, said each spacerless blade further including a plurality of grinding or cutting segments circumferentially spaced radially outwardly of the circumferential extent, the plurality of segments each having a first side segment surface and a second side segment surface that is axially opposite of the first side segment surface and including a coating of diamond particles, the first and second side segment surfaces defining a segment thicknesses, said each segment further including a segment thickness center between the first and second side segment surfaces, the segment thickness of the plurality of segments being less than the blade core thickness to allow core-to-core contact between adjacent blades in the plurality of spacerless circular blades while also producing segments spacings in the plurality of segments between the segments of adjacent blades without the need for associated blade spacers.