Hey I was wondering if anyone knows how to stop a Multico K3 chisel from coming lose and spinning, how ever much I tighten the chisel after about a second of the auger spinning it comes lose and starts spinning around the auger. So far it has not come off but as a result of the hazard testing and attempts to rectify the solution have to be done after school hours (I assist in the workshop) which I am somewhat limited in.