Dear Valued Customer, According to our records, you own a Grizzly G0771 10" Hybrid Table Saw. We recently discovered that the motor pulley on this saw has an over-sized bore, which may prevent the pulley from securing properly to the motor shaft. During saw operation, an improperly secured motor pulley and its machine key can come off the motor shaft and be thrown with great speed by the rotational force of the motor. If this happens, there is a small chance that the machine key can be ejected through the table opening and strike the operator or bystanders.