Extension
Article no. Version Output Drive Length Design drive / output
917-1 917-1 Extension 917-1 ∙ Square, hollow 12.5 mm (1/2 inch) ∙ Square, solid 12.5 mm (1/2 inch) i 12,5 = 1/2″ j 12,5 = 1/2″ 45 mm With locking ball
917-3 917-3 Extension 917-3 ∙ Square, hollow 12.5 mm (1/2 inch) ∙ Square, solid 12.5 mm (1/2 inch) i 12,5 = 1/2″ j 12,5 = 1/2″ 76 mm With locking ball
917-5 917-5 Extension 917-5 ∙ Square, hollow 12.5 mm (1/2 inch) ∙ Square, solid 12.5 mm (1/2 inch) i 12,5 = 1/2″ j 12,5 = 1/2″ 123 mm With locking ball