Bondhus® products have gained an international reputation for strength, quality, and unsurpassed durability, features well-suited to professionals or virtually any quality conscious tool user.Bondhus Tools are manufactured from ProTanium® steel, a proprietary blend that requires custom heat treating to produce a steel that develops very high torque and additional hardness while maintaining adequate ductility. The tools are well designed, thoroughly tested, and guaranteed to exceed the expectations of the seasoned professional and do-it-yourselfer alike. They will save you time, frustration, and dollars. Bondhus guarantees its tools for life.