Indispensable for your tool box
Great strong 10" extension. Use this with a 6 " extension to get at o2 Sensor on a Ford Mercury V6 Vulcan Engine. Broke it loose with no problem. This gives it the additional torque needed. 1/2" is the way to go. Nickel plating looks good and ball has nice spring action. Fits together nice with older 1972 6" extension. This is made in China however the Quality is excellent. Apex makes these for Sears and they have plants all over the world. Times are a changing. Craftsman still has be best Warranty in the Market Place. Lifetime! Thanks For reading.