2Pcs Hole Saws Bits Female Thread Angle Grinder Accessories for Marble

The cutter head is of sharpness, the drilling speed is fast, the opening is round. Large row of cutting are designed to reduce hole resistance Suitable for all kinds of marble, ceramic tiles, wall and other stone openings Item Type: Hole Saws Bit Standard(optional): 20mm 22mm 25mm Material: Female Thread: Applicable Equipment: Angle Grinder Scope of Using: Marble, ceramic tiles, wall and other stone openings