12" SMW AUTOBLOK 3-JAW HYDRAULIC CHUCK, Model 305 RC, 86 Through Hole, 12" 3-Jaw Stroke, 3100 RPM Max Speed, 160kN/LBS Clamp Force.
| # Jaws | 3 | 3 |
| Type of Actuation | Hydraulic | Hydraulic |
| Body Diameter | 12" | 304.8 mm |
| Body Height | 6" | 152.4 mm |
| Through Hole Diameter | 3.4" | 86.36 mm |
| Jaw Stroke | 0.2" | 5.08 mm |
| Max Speed | 3,100 RPM | 3,100 RPM |
| Max Pull Force | 17,984.5 lbf | 80 kN |
| Max Grip Force | 40,463.7 lbf | 180 kN |
| Dimensions | 12" x 12" x 6" | 12" x 12" x 6" |
| Weight | 140 lbs | 140 lbs |