United Abrasives - SAIT A36Q Grit 1/2" Dia X 2" Aluminum Oxide Resin Bonded Mounted Point is ideal for medium to heavy stock removal. The Type W189 mounted point with 24000 RPM has shank measuring 1/4" Dia X 1 1/2" is ideally designed for deburring and finishing. It is perfect for quick removal of stock. Cost effective mounted bonded point can be used as an alternative to carbide burs and finds its application in ferrous metals such as iron, steel, welds. Each point is formulated to produce perfect balance to perform with no vibration or run-out and is sold as 10 per box.