1" Ogee 1/2" Radius Bullnose 1 3/8" core bit sink grinding drum concrete granite

(c) 1 Piece of 1 3/8" / 35 MM Diamond Zero Tolerance drum for sink basin hole grinding / cutting (5/8"-11 Thread arbor). (d) 1 Piece of 1 3/8" / 35 MM Diamond Core Bit / Hole Saw Cutter for stone concrete (5/8"-11 Thread arbor).

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