Introducing the Downdraft Table Panels Kit by POWERTEC.This kit includes four panels designed to help you build and customize a down draft table set up to suit your project and workshop needs. These panels can be an invaluable asset to your dust collector system providing you with a high quality solution to controlling dust while in the mist of sanding. These panels are perfectly sized to accommodate a small to mid-sized workspace, and can be stacked together to handle much larger spaces for bigger woodworking projects. 6-11/16 x 16-1/2 x 13/16 (Panel W x L x Side Flange)Premium DesignPossessing a powder coated steel construction, each panel is made to withstand the abusive nature of sanding and dust collection. They come equipped with non-marring, nonslip rubber grommets for workpiece protection and removable, color-coded plastic stops for stabilization. Additionally, weve designed these panels with a practical hole grid pattern to fully optimize your dust collecting efforts and to ensure that youre getting cleaner work surfaces and more breathable air for your workshop.Additional Dimensions DetailsGrommet Holes 16 per panel Dia: 1-1/8 Stop Holes 16 per panel Dia: 25/32"Stop Size (above the panel) 2 per panel 15/16" dia x 13/32" Held in place with plastic nutGrommet Size (above the table) 16 per panel 1-5/16" dia x 3/16" Held in place by formed groovePOWERTEC is a leading manufacturer of high quality woodworking tools and accessories, machines, and an assortment of OEM replacement parts. We are committed to exceeding expectations, while bringing the latest innovations, technology, and product development to the industry.