8″ Milling Machine Riser Block
For Bridgeport-Type Knee Mills.
Includes 4 bolts and cross member (spider).
The bolts (qty: 4) are hex head bolts 1/2″ in diameter, and can thread into the spider.
The base diameter is 15 inch (380mm).
The shoulder diameter is 12.48″ (317mm).
The inside diameter is 10″ (255.9mm).
The rectangular bolt pattern is 9 5/8″ x 6 3/4″
Please note: Actual paint color of the riser block MAY VARY from the photos.
PN: S4A-RB-8″