Steel and nylon bushings are used as replacement parts for rotational applications such as mechanical equipment or manufacturer assembly machinery. Plastic bushings work for rotational applications such as tire rotational applications and fits 2 to 3 inch holes. A reducer bushing as well as a pvc reducer bushing, can instantly adapt to larger bores that are attached to various tools that contain smaller diameter shafts. Back up pads serve as excellent replacement parts, as well as abrasive test kits. These kits can have abrasive wheel adapters to correlate with a variety of machines.