5978A Model Code: AA (part# 5978A) This item features: -Built-in speed regulator. -Remote exhaust. -Collet Size: 1/8 in. -Power Cap.: 1/10 hp. -Inlet Size: 1/4 in (NPT). -Hose Size: 3/8 in. -Length: 5.300 in. -Control Type: Twist Throttle. -Includes: 60 in. Hose w/Hose Protector. -Wt.: 1/4 lb. -Price is for 1 Each. Model Code Model Description AAFree Speed:54000 rpm, Air Consumption:16.800 CFM [Max] ABFree Speed:70000 rpm, Air Consumption:21.200 CFM [Max]