Insulators for yagi elements. 50 per package

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Insulators fitting the M2 yagis for upper freqs. The element thickness these are made for is 4,76mm (3/16inch).
Total length: 9,4mm
Length for the part which resides inside the boom: 6mm
Outerdiameter for the part inside the boom: 7,85mm
Outerdiameter for the part outside the boom: 12,7mm