8" to 6" Duct Reducer, ABS Ducting Airflow Tube Increaser Adapter Pipe Fitting for HVAC Heating Cooling Air Ventilation Systems 3/4x1x5/8" which is sharp enough to

which is sharp enough to have strong grinding capability

78 inch x 2

* Hook and loop sandpaper backing make easy for installation and removal

Suitable for ordinary hand drill and electric drill with perfect performance

8" to 6" Duct Reducer, ABS Ducting Airflow Tube Increaser Adapter Pipe Fitting for HVAC Heating Cooling Air Ventilation Systems 3/4x1x5/8" which is sharp enough toThis duct pipe reducer connector is used to connect the pipes of equipment such as bathroom fans, range hoods and dust collectors to the ventilation duct system, you can connect two air ducts of different diameters to create a seamless ventilation system duct. Suitable in home, offices, kitchen, factory or apartments. Specification Color: White Material: ABS Height: 113 mm 4. 45 inch Inner Diameter: 200 x 144 mm 7. 87 x 5. 67 inch (Big*Small) Outer