Dust Ejection System? provides durability by ejecting damaging dust and debris particles that enter the tool through the air intake vents Items Included: 115mm Protective guard# 125mm Protective guard# Inner and outer disc flange# Spanner# Multi positioned anti vibration side handle Specifications Power Source:Corded Power Input:1700W No Load Speed:11000 rpm Amps:13.0 Amps Horse Power:2.3 HP Max Disc Diameter:115/125 mm Spindle Thread:M14