FEATURES In-Line Air Drill is designed for low speed/high torque applications, such as drilling, sanding, and polishing. Keyless chuk come with ZAD-356 Specifications Brand Name Zipp Air Tool USA Item model number ZAD356 Chuck Size 3/8"(10 mm) Spindle Thread in. 3/8"-24 in. Net Weight 1.8 lbs (0.8 kgs) Length 8.8 in. (225 mm) Air Inlet Size 1/4" - NPT/PT RPM 2,600 Min. Hose Size 3/8 inch(10 mm) Avg. Air Cons .3.7 cfm