German industrial quality, as expected

Excellent; strong, awesome fit and finish, superior metallurgical properties, great size range, and the only European brand that makes a spanner close to an American size standard, they aren't quite as long as say snap on or blue point (about 5mm shorter) but plenty long enough to put plenty of torque on the fastener, i have a set of these and A Stahlwille series 13/26 piece set and they allow me to work on stuff that the shorter length of the Stahlwille can't undo, but as a small engine mechanic there is some stuff i work on that the Longer Hazet spanner can't fit onto due to space, the Hazet also has a thicker open end than the Stahlwille, making them not as useful when undoing thin hydraulic pressure lines, all up though for their strength and quality i would definitely buy these instead of any other top brand, including snap on!