U S Granite Standard's equipment is state of the art. We can produce almost any size machine base/surface plate to your specifications. Drilling, machining and slotting to suit your needs for locating and holding tooling and work. Holes can be blind, through or counter-bored; inserts are stainless steel threaded or solid. Slots are usually made in a T or U shape. We will be glad to quote from your drawing.
US Granite Standards
http://www.usgranitestandards.com/staticpages/index.php/equipment