Hi, I am Nickolas Grimes. I am an appliance service Tech. Seems that my old drill press is now past due for service but I am having problems finding a replacement chuck. I have been to mfg web site "jacobs chucks" but they said they don't make it any more. It is chuck # 633c. Does anybody know where I could find said chuck ? I live in so Calif. BTW, its an old craftsman drill press model # 150. thanx