I have owned the 1/4", 3/8", and 1/2" since 2016, with several of those years in a full-time professional setting. The 1/4" and 1/2" have been perfect, the 3/8" nothing but problematic. I love the 1/4" and 1/2" and they torque very close to my old Craftsman external bar-style torque wrenches, which I use for quick and dirty calibration tests. The 3/8" has been the problem child for me...first it started binding up, so I warrantied it in painless Tekton fashion. This new 3/8" worked fine..until I was doing cylinder head bolts, and it failed to click. After some testing, I found it would not reliably click in the higher torque range. VERY worrisome given the job at hand. I now have a 3/8" Gearwrench electric with flex head. I do think Tekton's QC and designs have improved significantly over the years, many of the "cheaply made" items have been replaced or dropped from the line (air hoses, long needle nose pliers, short all black impact star sockets...I have broken several of these and get the new chrome tip/impact bottom as welcomed replacements).