Castellated rim for fast, clean cutting. Ideal for cutting marble and slate and suitable for hard wall and floor tiles. Can be used wet or dry. Compatible with the GMC 1250W Wet Stone Cutter (263288). Castellated rim for fast, clean cutting. Ideal for cutting marble and slate and suitable for hard wall and floor tiles. Can be used wet or dry. Compatible with the GMC 1250W Wet Stone Cutter (263288).