Adapter Plate for Tubing Spider

Adapter Plate to Adapt the Tubing Spider, Tubing spider fit on the top of the adapter plate that plate fixed into the Master Bushing holes, with the help of studs, suitable for all sizes of tubing spider. Adapter Plate is Available for Both Pin drive Mater Bushing & Square Drive Master Bushing for 27-1/2" & 37-1/2" MB.