Bosch RD12V 5-Piece 12 In. 10/14 V TPI All-Purpose Demolition Reciprocating Saw Blade Thick .050 In. body for maximum control, less vibration and straighter cuts Taper back for easier starts in hard-to-reach applications 10-14 TPI with variable gullet depth for faster chip removal and smoother cuts 5 degree tilt angle for faster cuts and optimal performance 5 piece pack 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