Introducing the POWERTEC 8-Inch PSA Aluminum Oxide Adhesive Sanding Disc Collection This multi-functional sanding disc kit offers a practical and inexpensive solution to many of your sanding, polishing and finishing needs. Our Sanding Discs produce consistent, high-quality cuts with a uniform finish. Each 8” sanding disc is made with premium grade aluminum oxide grains known for their superior grinding strength and durability. These PSA discs have a sticky back adhesive that allows for quick and easy installation or removal from your sanding pad. Comes with coarse, medium and fine sanding discs designed to meet many of your general workshop needs. This wood sanding tool provides impressive results when working with wood, plastic, fiberglass, painted surfaces and non-ferrous metals (aluminum, lead, zinc, lead).In addition, we’ve selected six of the most commonly used grit types to accompany your workshop needs – supplying you with 5 of each (30 total). Professional Grit Types for Every Occasion• 60 Grit Sandpaper – Suitable for shaping rough wood and/or removing previous coats and finishes.• 80 Grit Sandpaper – Ideal for primary wood sanding, finishing, and removal of planning marks placed on workpieces.• 100 Grit Sandpaper – This very often used grain is great for exposed wood surfaces and provides pressure to reduce tough stock.• 120 Grit Sandpaper – It is suitable for most DIY applications and home workshops that require a final sanding before the job is done.• 180 Grit Sandpaper – This fine sanding option is commonly used with bare wood and furniture manufacture. Also used for smoothing glossy painted surfaces in preparation for applying another coat.• 240 Grit Sandpaper – Perfect for all types of materials. Often used for secondary grinding or smoothing wood and paint surfaces with less precise requirements.Inside Package (30) 8-Inch Round Sandpaper Disc Grits Included: 60, 80, 100, 120, 180 and 240Material: Aluminum Oxide DESIGN QUALITY FEATURESAnti-Clogging Coating Prevents abrasive particles from clogging abrasive surfaces – optimizing your workflow and overall sanding performance. Resin Over Resin Bond Both moisture and heat resistant, this bonding agent is also very strong with greater grain retention which provides longer durability. C-Weight Backing This impressive paper backing is lightweight, yet ensures the strong and flexible adhesion needed to withstand the wear and tear commonly associated with abrasive disc sanding.POWERTEC 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.