Sorry to say it's not drilled out for the Festool OF1400 router
BUT I don't bolt my router to the plate anyway it's a pain,I just drop in a brass guide and go to work, in the snapshot below you will see I put in a plastic insert that has a 3/4" hole for the brass guide and it fits in the hole that comes in the Jasper jig.
You can make a plastic insert part quick and easy with a hole saw, cut out the part and the grind it down on the belt sander to fit just right in the jig then take it back to the drill press and drill hole the 3/4" hole for the brass guide.
I use a small jig to get the outside dia. just right with a 1/4" dowell pin that's clamped to the belt sander on some wood stock and then just turn it and get it down to the right size. (it must be dead on.)
Then I take it to the oscelating sander to get the 3/4" hole dead on.
By using the brass guide way the power cord does not get in the way and you can use a 1/4" ,3/8",1/2" Bits, just drop the router in zero it out set the depth of the cut and go to work, no need to take the router base plate off when you need to cut a cir.
looks like # 2 base 6 1/2" dia.with one flat side.
#2 and #4 would be 5 5/8" on center of the screw
#1 and #3 would be 2 3/16" on center of the screw
and then you have one extra one on the right that would be
dead on center of the base plate and 5/8" off the side of
Hope this helps
Just a note**** I did drill my jig out today so I can now put in 5" and 6" holes quick and easy
, it's quick fix if you want to know how just ask.
Model 400 Jasper Tools Circle Jig
This circle jigs fits: Porter-Cable 7539, 7529 & 690, DeWalt 621 & 625, all Sears, Ryobi and Makita plunge routers; Bosch 1613 & 1615, Freud FT2000E, Skil 1825 & 1823, Hitachi M8V, TR12 & M12V, Fein FT-1800 and Elu 177 routers
The Model 400 will cut circles from 1 inch to 7 1/2 inches in diameter, in 1/16 inch increments.
The jig has an easy to read scale that is calibrated for a 1/4 inch router bit.
The Model 400 will generate circles that are smaller than the base of the router.
This requires that some of the pivot holes be located under the router base. A matching centre locating pin is also available, the Model 350.
model 400 ▼ at 31.oo bucks