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Product: GP-940 Air Engraving Stylus (34,000 bpm)  Specification： 34,000 bpm Price: Bargain  Delivery Period: Shipped within days from the date of payment of the buyers. Last Updated: 10 Sep,2012   Valid Until： Long-term effective

Housing : Steel Stroke Length : 1.2 mm Stroke Speed : 34,000 bpm Net Weight : 0.24 kg Length : 160 mm Air Cons. : 0.05 m3/min Air Inlet : 1/4" Hose Size : 6.5 mm(ID) Sound Pressure : 75 dBA Air Pressure : 90 psi Vibration : 2.9 m/S2 Packing : 2