I searched around a bit but couldn't find an answer on this. I recently acquired a G0453PX planer with spiral cutter head. I need to replace the cutter inserts (74 of them) and Grizzly price is pretty high. I contacted another vender and he seemed reluctant to say his would fit based. Grizzly labels them as 14mm x 14mm x 2mm, but have seen replacements out there that seem to be a slightly different size...and quite a bit cheaper. Does anyone have experience with replacement cutters for this planer? Or should I look into replacing the head with a spiral head that has more of a shear cut? Thanks.