Diamond coating optimizes performance and retains sharper tips than traditional or bi-metal carbide saws. Nickel on these bits maximizes your tool life with great corrosion resistance . Side holes facilitate slug removal after drilling. Perfect set for cutting precise holes in a wide variety of materials such as glass and ceramic. Package contents: 2 pcs x Glass Hole Saw; drilling diameter: 28mm. Colour: silver Quantity delivered: 2 pieces
