Regularly $12.97 - High Speed Steel. Set includes; two 1/8 inch shank screw mandrels, a 1 inch 36 tooth blade, a 1.25 inch 56 tooth blade, a 1.5 inch 36 tooth blade, a 1.75 inch 74 tooth blade, and a 2 inch 48 tooth blade. Use with plastic or wood. Not for use on metal. For use with Dremel Rotary Tools.