Use for sheet metal cutting, especially stainless steel. Cuts quick, precise holes in the stainless. Over drill flange built in to prevent penetration beyond the sheet metal. Teeth design for fast cutting clean and round holes. New and high quality. Material: Alloy;Color: Silver grey Diameter: 25mm Package Includes:1 x Hole Saw Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3 cm.