1、OSCILLATION FREQUENCY: This is an industrial grade motor air cutter that oscillate at over 20,000 per/min(RPM), bring high efficiency for your work 2、FAST AND EFFICIENT: Pneumatic glass scraper can quickly and easily cut old rubber moldings, gaskets, and effective for many other projects 3、TIME AND EFFORT SAVING: Air pneumatic glass scraper can save your time and effort with versatility in many projects, very versatile and helpful 4、WIDE APPLICATION: Window glass scraper is suitable for surface grinding, engraving, cutting, chamfering, deburring, polishing and other processing operations of accurate parts and moldings in various industries(swing type) 5、STRONG MATERIAL: Multifunction air pneumatic glass scraper adopt alloy steel material, possess high strength, high toughness, wear resistance, erosion resistance, high and low temperature resistance