Here's your compact, lightweight die grinder that's perfect for porting or detail polishing cars, boats, aircraft, models, etc. A full 6" long and equipped with a 1/4" collet, your grinder uses 4 cfm @ 90 psi at 20,000 rpm maximum speed and includes a built-in regulator, and wrenches. Accepts popular 1/4" NPT air fittings.