PORTER-CABLE 77244 24-Inch Dust Shroud Dust shroud accessory for the 24-inch Omni jig joinery system (77240) Quickly attaches to the jig - no additional components required Keeps work area clean when used in conjunction with Omni jig stabilizer bar (included with model 77240) Directs chips to a single point for collection underneath the jig Dust shroud accessory for the 24-inch omnijig joinery system (77240) Quickly attaches to the jig - no additional components required Keeps work area clean when used in conjunction with Omnijig stabilizer bar (included with model 77240) Directs chips to a single point for collection underneath the jig Provides exceptional chip removal efficiency when used with a dust collection system.