Our Complete Kit The 4 Inch hook and loop backing pad is used to hold sanding discs in an angle grinder. The 5/8 "-11 drill adapter can be connected to an electric drill, guaranteeing stability and precision during sanding operations. But that's not all – we also include a generous supply of 100 high-quality sanding discs (10 pcs each of 40 60 80 120 180 240 320 400 600 800 Grits). With a variety of grits available, ranging from coarse to fine, you'll have the versatility to tackle any project with ease. This kit is perfect for woodworking, metalworking, automotive projects, and more. 10 pcs each of 40 60 80 120 180 240 320 400 600 800 Grits The kit includes 100 pieces of sanding disc sandpapers, offering a wide range of grits to suit various sanding applications. From coarse to fine, these high-quality sanding discs can almost meet all of your general polishing requirements. Hook and Loop Backing Pad Easy To Use: The 4 Inch backing pad is used to hold sanding discs in an angle grinder, allowing for quick and easy changes. The 5/8"-11 threaded connecting rod provides a reliable connection to electric drill. Thickened Sandpaper Backing Strong and Long Lasting: The grits are marked on the back of the discs for easy identification. Thickened sandpaper backing with strong adsorption, not fall off when installed in use. Easy to install and remove. High Quality Sandpaper High Quality Sandpaper: Made from top aluminum oxide grain, durable and anti-static, provides a long-lasting grit. Ideal for various materials in both woodworking and metalworking.