7 Inch (178 mm) DiaVertical Disc Sander 3 hp, 8,500 RPM, Gearless, Rotational Exhaust, 5/8 Inch-11 Female Pad Dynabrade 7 Inch (178 mm) DiaVertical Disc Sanders are ideal for grinding on these materials or applications Sheet Metal, Fiberglass, Composites, Carbon Fiber Sand, Deburr Metal Parts, Surface Condition, Remove Mill Finish Finish Aluminum, Remove Paint & Rust. Governor-controlled air motor maintains tool RPM under heavy loadOverspeed shut-off feature ensures maximum operator safetyMotor is gearless with less wearable parts, ensuring reduced maintenance and less downtime. Insulated tool handle minimizes cold air transmission to the handHandle position is adjustable for operator comfortAll models include safety-lock throttle leverFor peak performance, use of optional 95870 Air Hose-1/2 Inch (13 mm) diameter is recommended. Each model includes 50283 Backup Pad, 7 Inch (178 mm) in diameterCovers more area in less time! Pad accepts 7 Inch (178 mm) diameter abrasive discs with 7/8 Inch (22.23 mm) center hole, sold separately. Pad accepts 7 Inch (178 mm) diameter abrasive discs with 7/8 Inch (22.23 mm) center hole, sold separately. Part # 53263 Sold in qty's of 1 Air flow 34.0 Exhaust type Front Height 8-1/4 Inch Hose ID 3/8 Inch HP 0.7 Country of origin United States Product type Disc Sanders RPM 8500 Spindle thread 5/8 Inch - 11 Male