Detailed Product Description Air angle grinderModel: AT-1 Technical data:Max griner size:40mmSpring collet size: 6mmFree speed:≥17500r/minAir hose size:8mmOverall length:180mmN.W:0.75kgAir pressure:≤0.63MpaUSE:The air grinder is used for burr cleaning,sanding,polishing,roll scale thining and welding in working ship,chemical machinery,mechanism manufacture rcpairing and so on.