Comparison : Item # SP-1611-2500, Spring Wrapped Solenoid Operated Indexing Clutch – SP-1611 Series
Item # SP-1611-3125, Spring Wrapped Solenoid Operated Indexing Clutch – SP-1611 Series
Item # SP-1611-6, Spring Wrapped Solenoid Operated Indexing Clutch – SP-1611 Series
Item # SP-1611-8, Spring Wrapped Solenoid Operated Indexing Clutch – SP-1611 Series