Have you ever struggled with controlling your dust and shavings when drilling? This dust collector attaches to most shop vacuums and surrounds the entire drill bit so that no dust or debris will ever escape it. The files includes the dust collector and 3 different sized adapters. The dust collector fits a 1.25 inch diameter hose and the adapters fit 1.875, 2.25, and 2.5 inch vacuum hoses.