The product molding process uses nitrogen to increase the product hardness and ensure the flatness, which can make the wood board cut in parallel , 【Size】: 1 slot width About this item If you own a Ridgid R4514, R4514T, R4518, R4518T, or R4518NS table saw and want to use dado blades, this throat plate kit is exactly what you need. The stock plate that comes with your saw won't accommodate wider dado stacks, so this replacement allows you to make those wider cuts for joinery, grooves, and rabbets. The part number 089240028701 matches the OEM specification, so... Package Include: 1 X 089240028701 Replacement Table Saw Plate Dado Throat Fit: Compatible with R4514, R4514T, R4518, R4518T, RYOBI 089240028701 High Quality: Made of PC+PBT materials. Replacement Throat Plate For Ridgid Table Saw Models R4514 Table Saw Throat Plate Ryobi Table Saw Blade Set Dado Throat Plate For Ridgid R4514/R4518 Table Saw Dado Throat Plate 【High Quality】: Made of PC+PBT materials. Ryobi OEM part# 89240028701. Compatible with 【Fit】: Compatible with R4514, R4514T, R4518, R4518T, RYOBI 089240028701 【Part Number】: 089240028701 Replacement Table Saw Plate Dado Throat