Amana Tool® uses only the finest industrial quality precision ball bearings available. Bearings are double steel-shielded for extra rigidity and to inhibit dust. A special high-performance, high-temperature grease is used for maximum life.Note: Solvents should not be used to clean ball bearings, as this will deteriorate the special grease. 'Frozen' bearings (ones that do not rotate freely), should be replaced immediately. General purpose arbor spacers used on assembly type tools that require cutter adjustment.Use for cutting out undermount bowls, Surell®, Fountainhead® and other solid surface undermount bowls. For Corian® bowls, must be used with a Corian® bowl template.Note: To achieve the best possible results use this bit with a variable speed router: Minimum horsepower: 2-1/2 Speed: 12,000 RPM or less.Maximum RPM 12,000.
