Betterley Tru-Cut Blade Insert System. Fits Dewalt DW746

Smaller boards would sometime hang up on the original insert. The Betterley is adjustable so you can level it perfectly with your saw.

The insert work a great but I would have liked to be able to add a splitter but the insert is slotted for stock blade guard.

This is a very well made product, and it will work fine in a Dewalt DW744X provided you do not want to use it for Dado blades. If you try using a Dado it will hit the aluminum closest to the motor.

Awesome product, fit the saw perfectly.

Even tho Betterley does not list the DW744x I spoke directly with them 3 years ago when I purchased my original WL-412. We determined that the DW746 and DW744x use the same exact size inserts. I have 2 of the WL-412 inserts. One is setup for regular blade and the other setup for Dado blade. If you want to use the riving knife with either blade setup simply cut the aluminum with a hacksaw blade. I do not see any negative effect and the insert still fits nice and snug.

Works fine using dado blades. However won't fit when you replace the safety unit.