Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not Heavy Duty

Unfortunately, this product cannot withstand high torque application. I was trying to remove crankshaft pulley bolt to replacetiming belt, but end where socket goes in got twisted. Seems like this extension wasn't designed to handletorque more than 150 ft/lbs. If you need long and heavy duty long extension, buy it from other brand. Connecting 3 shortair impact extensions gave me better result than this extension.