<p><b>Specification:</b></p> <p>Shank diameter: approx. 3mm (1/8")</p> <p>Bristle disc Diameter: approx. 1"(25mm)</p> <p>Disc Center Hole: 2mm(0.08inch).</p> <p>Material: Nylon + Aluminum Oxide Grains.</p> <p><b>Package Included</b></p> <p>6 x Radial Bristle Disc (Green) Grit 80#</p> <p>6 x Radial Bristle Disc (Blue) Grit 120#</p> <p>6 x Radial Bristle Disc (Red)Grit 220#</p> <p>6 x Radial Bristle Disc (Gray Blue) Grit 400#</p> <p>6 x Radial Bristle Disc (Purple) Grit 600#</p> <p>6 x Radial Bristle Disc (Light Green) Grit 1000#</p> <p>6 x Radial Bristle Disc(Gray)Grit 2500#</p> <p>6 x 3mm Mandrel</p> <p><b>Features</b></p> <p>1.Bristles disc suit for deburring, cleaning, finishing and polishing detailed parts, tiny areas and irregular places more effectively with no scrach</p> <p>2.Discs Diameter 1 Inch,Shank Diameter 3mm.</p> <p>3.These radial bristle brushes are ideal for jewelry making, hobby and craft, metalworking, wood carving and DIY making project.</p> <p>4.These detail abrasive brushes have good elasticity and toughness</p> <p><b>Note:</b></p> <p>Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. Since the size above is measured by hand, the size of the actual item you received could be slightly different from the size above. Please don't mind, thank you! </p>