DDIN Helicopter Blocks are ideal for stringing multiple sizes of single overhead conductors where the pilot line will be flown in.  A unique feature of these blocks is the exclusive “Snap Lock” fold-away helicopter arm, which eliminates the need for removing pins to deploy or retract the fly arm. Urethane lined sheaves.

Features:

• Smooth and consistent operation
• “Snap Lock” fold away helicopter arm
• Spring-loaded side gate
• Constructed of aluminum alloy, lightweight and durable
• Anti-Friction Bearings packed with synthetic aviation grease