8% Cobalt for long cutting life and resistance to heat and wear. 0.035" thickness for flexibility in tight spaces. Straight tooth pitch gives a smooth cutting action. Fits all standard reciprocating saws including: Dewalt, Milwaukee Sawzall, Makita, Bosch, Skil, Ryobi, Hilti, Porter Cable, Ridgid, Craftsman, Hitachi. Pack of 10