Pencil Grinder for high speed, precision de-burring work as well as general maintenance use. Features and Benefits 3mm and 1/8" collets included to allow use with both metric and standard carbide burs Very low noise level: only 71 dB(A) High free speed RPM: 60,000 Max Exhaust overhose redirects exhaust away from operator for added comfort Twist throttle allows for variable speed use General purpose pencil style die grinder is good for most shop type applications Lightweight and easy to handle Quiet and compact Low air consumption Ideal for restricted work space applications