Our ISO30 Toolholder ATC Forks are compact and made to be universal but are uniquely well-designed. This is what ships with our ATC Pedestals. Positively indexed - won't shift or slide around Made from durable acetal Designed to fail in case of collision or too much downward force ATC Tool Holder Forks for standard ISO30 Made in America P.S. β Keep spares on hand in case you have a boo-boo π Yes, you can use these on your ShopSabre ATC Rack. See our ShopSabre Swap guide here. (Grab 2ct 1/4-20 Flat head screws per fork) If replacing a PDX CNC Fork you likely won't need to calibrate that position again. Specs Fits ISO30 CNC tool holders Mounting spacing between hole centers: 1.5" Mount holes to center of fork opening: 2.347" We recommend M6x1 Flat Head Screws (1/4-20 x .625" w/ 90ΒΊ countersink).