The refill engages the workpiece but is not identical, 5 mm difference to match the device.
Possible cause very noticeable vibration, besides the noise ...
Finally after 1 year and six months, tired of the noise, I try to reduce, adjust the block. I push the gate against the blade with the shaver.
Result a hole in the grid.
Rather than buy a new grid, I bought a new device and hope that the replacement grille will be better suited.
In fact the razor blades and mower are not replaceable, long dead.
