Product Description 1001 uses for drilling, milling, grinding, polishing, brushing, de-burring, rust removal, engraving, carving and cutting. A special motor technology (no replacing of brushes necessary) with full-wave electronic speed control allows for powerful operation with constant torque, even at low speeds! This feature is especially important when micro-drilling, brushing and polishing on delicate materials (e.g. plastics, etc.). The extremely balanced motor, which makes the tool run smoothly and vibration-free, as well as low weight and the improved ergonomic design with the soft-grip two-component material allow for optimal control while working. The spindle runs in a precision ball bearing. A button locks the spindle for an easy exchange of bits. The keyless precision chuck allows for quick exchange of all accessories with shanks from diameter 1/64" to diameter 1/8" (0.3 - 3.2mm). The tool's 4/5" (20mm) standard collar makes it fit easily into all other useful MICROMOT accessories, such as drill stands and vices, making this Precision Rotary Tool even more versatile. Technical data: Speed 5,000 - 20,000rpm. Keyless Chuck for shanks from 1/64" - 1/8" (0.3 - 3.2mm). Max. Power 1/8hp (100W). Volts 110 - 120V AC, 60 Hz. Length 8 1/2" with chuck (220mm). Weight 1 lb (450g). From the Manufacturer Proxxon Precision Rotary Tool FBS 115/E - Proxxon hand-held rotary tool with soft grip for comfortable control. 1,001 uses for drilling, milling, grinding, polishing, brushing, deburring, derusting, engraving, carving and cutting. A special motor technology (no replacing of brushes necessary) with full range electronic speed control allows for powerful operation with constant torque even at low speeds. This feature is especially important when micro-drilling, brushing and polishing on delicate materials. The extremely balanced motor makes the tool run vibration free with no overheating. The soft-grip ergonomic design allows for comfortable use with the optimal control. The spindle runs n a precision ball bearing and a button locks spindle for the easy changing of bits. The keyless precision chuck allows for the quick change of all accessories with shanks from 1/64-inch to 1/8-inch. Variable speed 5,000-20,000 rpm with 1/8-horsepower (100W) motor; volts 110-120VAC 60HZ; length 8-1/2-inches, weighs only 1.2-pounds.