Review on 🪚 ENERTWIST 20V Max 4-1/2" Cordless Circular Saw with 2.0Ah Lithium Battery and Charger, Laser & Parallel Guide, Wood Plastic Soft-metal Cutting Blades, Vacuum Adaptor - Multifunctional by John Faxon

After using the the saw for a few minutes the blade started chattering the protective cover to the point where I wasn't able to retract the plate back to the original starting position. I saw the part that was holding the blade was pushed up and rubbing along the cover plate. I unscrewed the back to see what was going on. It revealed that the bushing was out of position and the gear wheel that slides back. My only conclusion is that when the temps start getting hot the expansion of the metal starts loosening and causes the gear wheel and bushing to retract to the least area of resistance. It's a simple fix to just hammer it back into place but every time this happens, there are small metal shaving when it hard stops when hitting the protective plate. All they needed to do was have a small seal stopper to prevent the gearing to slide back but for some odd reason this wasn't thought of when completing this device.