Sleeve, Worm Drive, HiTorque Bench Mill

Outer sleeve for the Z-axis worm shaft on the HiTorque bench mill and SIEG SX2.7 bench mills.
This sleeve is the right size for HiTorque bench mills in the 5500, 5550 and 6500 model lines. For the sleeve that fits the 6550 mill with the wider headstock, see part # 6263.