This high-quality Sunnen external hone is perfect for any machining or manufacturing needs. With a mandrel type of specialty, it can handle any business or industrial project with precision and efficiency. The range of .800 to 1.500 makes it versatile and adaptable to various workholding and toolholding needs. This item is ideal for those in the CNC, metalworking, and manufacturing industries looking for a reliable mandrel. Get the job done right with this Sunnen external hone.