The non-slip design of the switch, the design of the rotary switch, precise speed regulation, handy, can adjust the speed according to actual needs. The body is compact, flexible, labor-saving, durable, easy to hold and comfortable to operate. Features a durable tungsten carbide tip, aluminium body making it works effortlessly on hard materials including hardened steel, stainless steel, ceramics and glass. One-time briquetting tungsten carbide tip is more durable than others, not easy to drop. Universal 1/4 inch air inlet, extra long air hose for easy connection. Widely used in lettering category marker effect on the surface of the metal, porcelain, glass, plastic, marble, wood, stone, porcelain and other hard materials.Scribe tool point is replaceable, each package comes with 1 free replacement carbide tip for use. The engraver pen through the CE, SGS, ROHs, PAHS certification. Specific parameters: Pen needles Material Alloy steel Main Color Silver Impact frequency 16500 / min Ferquency 0.28CFM Air consumption 0.08（m3/min） Working pressure 90Psi Air inlet size 1/4" Length of pen Φ18x132L(MM) Recommendations for using pneumatic tools: Please inject 2-3CC. of pneumatic lubricating oil before and after daily useAfter filling the oil, please let it run freely for a few secondsRecommended air pressure for this tool is 90 Psi. Higher pressure will cause excessive wear on the tool's internal parts and shorten its life . Water in the air line will cause damage to the tool.Drain the air tank and line daily or as often as necessary,depending on weather on weather and temperature conditions Pneumatic Engraving Pen Precision Tip Tool Scribe and Engraving Pen Air Micro Die Grinder Kit 16 Pcs Air Die Grinder Kit Right Angle Die Grinders with 1/4" And 1/8" Collets Mini Air Sander Kit 1" 2" 3" Random Orbital Sander Car Pneumatic Polisher 48Pcs 1'' 2'' 3'' Mini Random Orbital Air Sander Kit Micro Pneumatic Air Pencil Die Grinder Kit Buying Options Add to Cart Buying Options Buying Options Add to Cart Add to Cart Customer Reviews 4.5 out of 5 stars 14 4.2 out of 5 stars 49 — — 4.3 out of 5 stars 851 3.8 out of 5 stars 132 Price — no data $58.99$58.99 — no data — no data $42.99$42.99 $32.99$32.99 Widely used in lettering category marker effect on the surface of the metal, porcelain, glass, plastic, marble, wood, stone, porcelain and other hard materials Widely used in lettering category marker effect on the surface of the metal, porcelain, glass, plastic, marble, wood, stone, porcelain and other hard materials. Very suitable for stainless steel, alloy, iron, non-ferrous metal materials. It can be used for surface finishing, leveling, chamfering, deburring and mirror polishing of metal, wood, tires and other parts. Ideal for spot sanding focus areas, removing solder joints and rust spots on metal products, deburring furniture and woodwork, mold manufacturing, polishing automotive and detailing work, et. Ideal for spot sanding focus areas, removing solder joints and rust spots on metal products, deburring furniture and woodwork, mold manufacturing, polishing automotive and detailing work, et Widely used in lettering category marker effect on the surface of the metal, porcelain, glass, plastic, marble, wood, stone, porcelain and other hard materials