This Foredom® A-RB retractable bench brush is ideal for cleaning workpieces, work surfaces and tools and for clearing debris from a vacuum port or similar small openings. The brush offers two brushes: the larger brush (1-1/2"L x 1" dia.) is extended and retracted by twisting the housing, the smaller brush (3/4"L x 3/8" dia.) is extended and retracted using a slide built into the housing. The plastic housing, 5-1/4" long (with brushes fully retracted), is lightweight but tough and durable; it takes up little space on the bench yet is ready in an instant when needed.