| Comparison : | Item # PF11-M3.5-0, Large knob, spring-loaded –  Types PF11, PF12 and PF15 - Metric Item # PF11-M3.5-0, Large knob, spring-loaded –  Types PF11, PF12 and PF15 - Metric
 Item # PF11-M3.5-0BL, Large knob, spring-loaded –  Types PF11, PF12 and PF15 - Metric
 Item # PF11-M3.5-0BL, Large knob, spring-loaded –  Types PF11, PF12 and PF15 - Metric
 Item # PF11-M3.5-1, Large knob, spring-loaded –  Types PF11, PF12 and PF15 - Metric
 
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