Pneumatic Air Scribe Great For Metalsmiths, Metal Working, Hobbyists & Jewelers This is a new pneumatic air scribe with an industrial diamond tip Used for marking metal, glass, wood and plastic Comes with an air hose, handpiece, 2 adaptors & o-rings Hooks up to air compressor (not included) The handle measures approximately 5 1/2" (139.7 mm) long Newer versions of the item shown may be shipped, as a result, there may be a slight variation in color and design.