Specifications‎:‎Material‎:‎ Plastic & steelOuter diameter‎:‎ 25mm‎(‎0.98‎"‎‎)‎Shank Diameter‎:‎ 3.17mm‎(‎1/8‎"‎‎)‎Length‎:‎ 47mm‎(‎1.85‎"‎‎)‎Size‎:‎ 80grit green / 120grit blue / 220grit pink / 400grit light blue ‎(‎each 3pcs‎)‎Uses‎:‎ nuclear carving‎,‎ wood carving‎,‎ Buddha‎,‎ ivory fruit and other micro slits polishingFeatures‎:‎Excellent bending recovery capabilities to maintain the flexibility and toughness of nylon‎,‎ polishing slit effect is very good‎.‎Wet milling in water‎,‎ to increase the hardness and durability‎.‎Can be polished olive‎,‎ Bodhi and other small slit‎.‎Package included‎:‎12x Radial Bristle Disc Brush1x Shank