Incra Miter-Slot Slider Bars

Any advice on widening miter slots? miter slot bar 100mm Aluminum Alloy T-Slot Slider Bar Miter Track Jig T Screw Fixture Slot T-Slot Sliding Bar with M6 M8 Holes for Table Saw Router Table Woodworking Tool ( miter slot track Miter Gauge Bar-Reference Part Number: CB104 262, PCS-252 Description: Miter Gauge Bar For Use with Saw Type: CB, ICS, and PCS Model SawStop Saws

miter slot runners I have a multi purpose workbench that has a miter slot that's about 38 deep and 34 wide A gauge I bought for it did not fit because the bar