Model 5141 Series paper shredders from Security Engineered Machinery of Westboro, Massachusetts, feature built-in oiling systems that keep cutting blades sharp even under constant use. The shredders are available in strip-cut, cross-cut, and maximum-security-cut configurations. Photoelectric controls provide for hands-free start and stop. The cutters are activated by the introduction of documents and automatically shut off when the material is shredded. The blades will not operate if the machine’s door is open or its bag is full. The automatic oiler provides continuous oil flow to the cutting heads to improve performance and extend blade life. The oiler’s feed rate can be set for light or heavy use, and replacing the oil bottles is fast and easy.