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Product Description
End cap for 8020 1" extrusion (1010) use 1 of this and the mirrored component also in my shop plus a length of 1" extrusion and a handful of 5/16" or 8mm BBs steel bearing quality is ok i would suggest using air-soft bbs or delrin. combine these parts to make a recirculating ball bearing block for use on other extrusions.