Vacuum speed: 25,000 rpmworking pressure: 90 psiInput size: 1/4 inchAir consumption: 4 CFMBrand Name: ToroModel: Pneumatic engraving machine polishingSize of the mandrel: 3 mm and 6 mm (1/4 inch and 1/8 inch)Minimum pipe size: 3/8 inchProduct characteristics:Molded aluminum under durable and light pressure.Practical operation of one hand with safety trigger for easy and safe start.Compact and light design, easy to transport.The 90 degree angle head allows flexible use in narrow areas.Ideal for smoothing, deburring, polishing and grinding.Professional grinder kits can provide total flexibility for most grinding and polishing requirements.It has small characteristics, light weight, high speed, low noise, low gas consumption, high concentricity, etc., and the operation is simple, fast and practical.widely used in all kinds of mussels, hardware, glass products, stone, crafts, decorations, printed circuits, etc. Grinding and finishing operations.Product Description:1. Use two special keys together to tighten the mandrel seat and mandrel nut to open the mandrel, choose a suitable grinding head to install it in the mandrel and lock the grinding head with a special key;2. The air hose is connected to the air inlet of the wind turbine:3. Hold the windmill with your right hand and press the trigger positioning piece and the trigger with your thumb. The windmill begins to operate, then slowly approach the surface to be polished and start working.Notes:You must add a small amount of lubrication oil before the work to make sure the tools work better;Please wear a mask during use;Check and make sure the grinding head is tight before use;Check the working pressure during use;Close the air valve after use and place it properly to prevent accidental opening and cause injury;If you find an anomaly, please check it on time;The tools must be maintained regularly.