1Good quality and practical, a perfect set of tools for polishing and grinding. 2Compressed air for power, energy saving and environmental protection. 3This air wet sander can be used with water, low noise and less dust. 4The speed of air sander can reach to 10000rpm, strong power output, good polishing performance. 5Suitable for grinding and polishing of dry and fragile articles and materials that are not resistant to high temperature. When pneumatic water grinding works, it can be cooled and humidified by water to protect the workpiece to be processed.Features: Good quality and practical, a perfect set of tools for polishing and grinding.Compressed air for power, energy saving and environmental protection.This air wet sander can be used with water, low noise and less dust.The speed of air sander can reach to 10000rpm, strong power output, good polishing performance.Suitable for grinding and polishing of dry and fragile articles and materials that are not resistant to high temperature. When pneumatic water grinding works, it can be cooled and humidified by water to protect the workpiece to be processed. Specification: Model: SY-8127 Speed: 10000rpm Air consumption: 4.0cfm Disc size: 5" Inlet: 1/4" Air pressure: 90psi Water pipe diameter: 4*6mm/ 0.16*0.24in Water pipe length: 5.5m/ 18.0ft Weight: Approx.1100g/ 38.8oz Package List: 1 * Pneumatic Water Sander 1 * Inlet joint 1 * Water pipe Note: Please allow slight error due to manual measurement. Thanks for your understanding.