B&D 27" Single Bend Knife RBDR-11 Premium Quality. American Made Paintless Dent Repair Tools B&D Tools are CNC machine turned or ground to obtain solid precision. Every tool is meticulously inspected and certified for Rockwell Hardness. B&D Tools are made from several types of Stainless steel. Tempered high carbon Stainless steels and standard stainless steel are used depending on the design of a particular tool.