yunguang yg-858 a4 thick layer paper cutter paper cutter paper cutting machine blade

Explanation: Blade 858 is rounded (the latest production is rounded, while older ones are square. The current machine's blade shell has become rounded, so the older square blades cannot be used on new machines, but the new blades can be used on older models.)
Now there are some counterfeit blades that have defects such as incorrect screw holes that do not match the holes on the machine's blade shell or are not durable for cutting. Using incompatible blades can increase the internal wear on the machine, while genuine blades have the Yunguang trademark and the HSS high-speed steel logo printed on them.