Use these high quality blades to cut through a variety of metals, fiberglass and plastic. Great for body work and exhaust work. These bi-metal blades contain cobalt for long lasting, shatterproof use. Fits Chicago Pneumatic, CIA, Florida Pneumatic, Ingersoll-Rand, Mac, Sears, Snap-on and any other air saw with dual set screw blade retention. Maximum speed is 10,000 strokes per minute. Always wear goggles when operating any air tool. Packed 5 blades per display pouch. General cutting of material over 1/8_ thick.