Not sure if I ended up in the correct category or not. I have a JET JWTS-10JF table saw. The saw has some things that could be better. The dust collector underneath is a disaster. It is a "chamber" that kinda funnels towards a 4" opening in the center of the bottom. The problem is that the dust stays put right where it lands and no funneling takes place because the drop angle is too shallow. The bigger problem is the table insert. Because the slot on the table insert is so large, pieces of wood drop down into the chamber and clog up whatever sawdust might have made it to the 4" opening. I can live with the poor dust collector thing but the large table insert could actually challenge living with anything. The slot is so large that anything under ˝" can/may fall through the slot, or may wedge against the blade, or may try to fall thru and exit the saw area at an accelerated rate....it is absolutely SCARY to operate! So I'm in the search for a new table insert. I have found a few zero tolerance table inserts and I have questions. Why aren't all saw inserts zero tolerance...for normal cuts anyway? Why are all the replacement inserts, whatever the size, made of something other than metal? I have seen phenolic laminate, plastic, and wood. How well do they hold up? Does anybody know of a METAL replace table insert for a JET JWTS-10JF table saw? Finally, one last question....what is the size of a "normal" slot opening (width) on a table saw insert when used for normal cutting?