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Ball Head Accessories for Super Knuckle Arm
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KS-420 3" Extension Arm Double Ball Head
KS-420 3" Extension Arm Double Ball Head KS-420 3" Extension Arm Double Ball Head can help build the Dual Knuckle Arms
KS-420 3" Extension Arm Double Ball Head
KS-420 3" Extension Arm Double Ball Head can help build the Dual Knuckle Arms

KS-420

3" Extension Arm Double Ball Head

Specification
- Color : black
- Primary material : aluminum alloy
- Product weight : 0.16 lb/80 g
- Features: two 1" (26 mm) ball heads and a 3" (7.6 cm) extension arm
- The extension arm has three 1/4"-20 and two 3/8"-16 female threads
- Compatible with: S Size (3") Super Knuckle Arm Shell (KS-398) and M Size (6") Super Knuckle Arm Shell (KS-399)
- Use: construction of Dual Knuckle Arms by connecting two Super Knuckle Arm Shells
View More Details
The 3" aluminum extension arm is made by CNC machining with black anodized finish. The ball heads have serrated surface that provides better grip with the Super Knuckle shell. The extension arm has three 1/4"-20 and two 3/8"-16 female thread holes that allow extending custom Super Knuckle Arm configurations. By inserting the two ball heads of the extension arm into the sockets of two different Super Knuckle arms, it help the construction of Dual Knuckle Arms.
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