Miter bar material?

Miter bar material? miter slot runners Miter Bars can be used in tandem for longer sleds or to engage both miter slots at the same time Retrofit to your existing sled and move easily from jig to jig miter slot track miter slot With its highly functional design, this aluminum bar is precision machined for a highly accurate fit with minimal movement Options #71518

miter slot track Make the ultimate crosscut sled Create perfectly square crosscut jigs fast The ZEROPLAY Miter Bar System takes miter miter slot or 58 miter slots

miter slot My new sled has some nice features like t-track for stop blocks, a hardwood top and aluminum runners for the miter slots! runner is in the miter slot  table saw miter gauge rod miter runners miter stop for table saw t slot jig miter track miter slot track miter bar blue