ToolCurve's 27mm hose adapter for Kreg ACS Track Saw, Compatible with Festool 27mm Hose Curvetec Adapter Features Connect your compatible 27mm hose to your Kreg ACS Track Saw Twist lock design, allows you to lock the adapter on your 27mm 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