The cylinders and pistons are imported castings, and much of the steel ... specially treated, hardened, and ground accurately to size. The front bearing is a ball bearing of the annular non ...

Kogel is promising better bearing longevity with their new Corrosion Resistant bearings with ceramic balls and hardened SS ...

Durable drill bits can maintain the sharpness and cutting abilities over a long period. This is smooth and accurate to handle hardened steel since it can result in consistent and efficient performance ...