I conducted a Google search for an obsolete service repair part and found Kauffman. Kauffman Family Tool Repair was very helpful even to the point of giving helpful suggestions on ordering the proper items

Needed a replacement nose cone for my dad's old B&D screwgun. Years ago, he had removed it temporarily to be able to reach a screw in a tight corner. My little sister found it on the table and, not knowing what it was, threw it out. We learned what she had done right after the city picked up our trash. There's been bad blood in the family ever since. Tried buying dad a new screwgun, but nothing doing. He says, "Modern tools are weak!" (He's got a point...) I looked everywhere for a replacement and the folks at Kauffman were the only outfit that still sold parts for such an old tool. The part was shipped and arrived 2 days later, just in time for dad's birthday. Some of the best customer service I've ever seen! We tried the nose cone out on the old screwgun. Fits like a glove! My dad is overjoyed. He's super excited to do the drywall in our basement renovation with his fully restored screwgun. Thank you Kauffman!!! Peace reigns in our family once again. =)