4000 Series Rotary Tool, Variable, 35,000 RPM, 30 Accessories, Case no checkout Ferrous Metal Ferrous Metal Unbreakable™ Technology—steel core eliminates breaking during overstrikes Safety Plate—secures head to handle preventing head dislodging Ergonomic Handle—shaped and thickened for improved comfort and less vibration Non Slip Grip—vulcanized rubber handle for secure grip while striking Lanyard Hole—safely secure hammer to wrist or stationary object 360 degree grip zone allows grip anywhere on tool Dependable product with replaceable motor brushes Electronic feedback for consistent power at lower and mid range speeds High performance motor supports tough applications Maximum comfort for improved control