Harken Small Swivel Base w/Double Cam

Ball bearing swivel bases feature dual rows of Delrin® ball bearings that swivel freely even under high loads. Bases include stand-up springs and a U-adaptor to accept a variety of appropriate blocks.

Weight (oz) = 12.75
Weight (g) = 362
Description = Small swivel base/double cam*
Min. - max. line dia. (in) = 5/16 - 3/8   
Min. - max. line dia. (mm) = 41131
Height (mm) = 111
Height (in) = 4.375
Fastener spacing (in) = 40972
Fastener spacing (mm) = 19 
Use with = 57 mm / 2.25" double ratchets

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