The Eastwood Reciprocating Pneumatic Metal Saw easily cuts intricate shapes and curves in aluminium, sheet metal, plastic, fibreglass, composites Perfect for body, exhaust and muffler work Requires just 3.5 cfm at 90 psi Replaceable blades (6 included) help maintain cutting performance At 5,000 strokes per minute, this pneumatic reciprocating saw aggressively cuts through most metals and other materials up to 1/16\" thick. Our air reciprocating saw is the easiest way to cut metals and more, whether body panels or an exhaust system, and you can use a smaller, DIY air compressor. Safety lock prevents accidental start. Blade guard doubles as a cutting guide. 1/4\" FNPT.   Product Specification: Strokes per minute 5000 Stroke length 5/16\" (8mm) Air Consumption 3.25 cfm (57 lm) Max. operating air pressure 90 psi Inlet thread size 1/4\" FNPT Max. material thickness 1/16\" (1.5mm)