I have tried to get my 90 Degree V bit to carve sence day one. I have tried it with the plastic coller along with the collet, I have tried it without the plastic coller it does not matter. I get a "Bit Depth Does not Match" no matter what I try. I have made sure everything is clean ,I have made sure it touches the bit sencer twice and all seems ok. then says again the same message. I can not find anything in Q & A or the trouble shooting unless I am missing it. Please Help