1 3/8" core bit polish drum 9 + 1 1/4" Ogee bullnose F30 router bit marble stone
Grinder or polisher speed must be lower than 6500 RPM when using with them. (a)1 Piece of 1 3/8" / 35mm Diamond core bit / hole saw for stone travertine concrete hole cutting (with 5/8"-11 Female Thread arbor).