Bosch RDN9V 9 In. 5/8 TPI Edge Reciprocating Saw Blades for Wood/Nail Demolition, 5-Piece Bosch demolition blades feature an extra thick kerf for maximum control, less vibration and straighter cuts Demolition blades are color-coded dark blue for easy identification Taper back for easier starts in tough to reach applications Variable gullet depth for faster chip removal and smoother cuts 5 tilt angle for faster cuts, longer life and overall improved performance