Pneumatic Air Scribe Engraving Pen w/ Chisel Tip Engraver Penumatic Tip Pen Brand New Pneumatic Air Scribe Engraving Pen , With Chisel Tip, Engraving Tool. Comes with one chisel tip as shown in photos;This tool is extremely lightweight and easy to use. Air consumption is extremely low at 1cfm, that means your compressor won't be struggling to keep up Simply connect a compressed air source to this tool and you are ready to work. Quantity: 1; Shipping Weight: 10 ounce