Diablo DHS375XT12 Universal Extension, 12 Inch x 3/8 Inch N/A Knockouts in bottom

Knockouts in bottom

Plug sewer & drain

Left side pattern boomless nozzle

It is also UL wet rated for use outdoors for house and yard

5 piece plywood blade

Diablo DHS375XT12 Universal Extension, 12 Inch x 3/8 Inch N/A Knockouts in bottomDiablo Universal Extensions provide access in hard to reach areas by extending the length of your power tool accessory. These extensions are ideal for use with Diablo Snap Lock Plus Hole Saw Mandrel. Highlights: Size: 12 inch x 3 8 inch RPM: 3000 Extend reach in hard to access areas No tools required in order to attach accessories Quick change feature allows users to switch between accessories with no down time Ideal for use with diablo's snap lock