Attaches directly to 115, 125mm DEWALT Grinders with keyless clamp. Compatible with DEWALT grinders that have a guard holder of 44mm, max. wheel diameter of 125mm and a max. rate speed of 11500/min. The universal connector allows the hose to swivel which eliminates the hose getting twisted up. AIRLOCK compatible for quick, locking attachment to vac hose. Captures 99% of the dust during surface grinding. Allows collection of harmful dust during surface grinding applications. Sliding section allows access to corners and surfacing to edge