This NEW Angle drill is the same quality as another famous brand -- you will not know the difference. Has Zirk grease fittings in the head and motor body to properly lubricate for long life. This drill is quiter than any aftermarket competitor drills. Light weight, High Torque, Smooth, fast and all the industrial quality of a $800.00 drill. Most parts including the motor, bearings, housings, etc. are completely interchangable with the similar model DOTCO. The head diameter is 5/8" which allows drilling as close as 5/16" to a vertical surface. (45 degree head is not available at this time.)