ToolCurve's 2 1/2" shop vac hose adapter for Milwaukee M12 3in Detail Sander Curvetec Adapter Features Connect your compatible 2 1/2" shop vac hose to your Milwaukee M12 3in Detail Sander Twist lock design, allows you to lock the adapter on your 2 1/2" shop vac hose  Created from a high-density plastic for lasting longevity and durability All of ToolCurve's adapters are labeled with the hose size and the tool they connect to Designed by ToolCurve in Ohio, Made in USA. We offer this adapter for additional size hoses on our website  Available sizes: 27mm, 36mm, 1-1/4", and 1-7/8" hoses