Kanzawa Kanzawa Free Cutter SD K-152 Hole Saw: 25mm - 130mm Cutting Depth: 25mm, Shank: 10mm For metal siding, gypsum board, wood, rubber, etc. Sharp cutting edge with high-speed steel. The center drill bit is tapered for excellent stability. Although this is a new, unused item, please note that the packaging may have some dirt and discoloration due to aging.