It's the smallest of the Leister hot-air tools with electronic temperature and airflow control

It has a knurled two-part brass thumb knob for all necessary adjustments

Wet use can extend disc life

The Crain 575 Multi-Undercut Saw delivers smooth

Pool Plaster Disc 70 Grit – Non-Corrosive Surface Refinishing Disc Pencil Tip Nozzle It's the smallest of theDry Use Recommended quick setup with any 7 polisher (wet use may extend life but requires a water fed tool) 70 Grit Medium Cut refines scratches & blends surface after 50 grit Non Corrosive Matrix wont rust; safe for saltwater pools Surface Types: Marble, quartz (Diamond Brite), pebble (PebbleSheen), Hydrazzo, Durazzo Max Speed: 3,000 RPM with variable speed polisher sander Specifications Disc Diameter 7 (hook & loop) Backer Pad 7 Hook & Loop Backer