This CX-312 blade is the perfect choice when you need to remove and save an unbroken glass. The narrow width makes it easy to cut through urethane without putting too much stress on the glass Made of high grade stainless steel All Torpedo blades gone through a vigorous and sophisticated tempering process to make sure they are not too stiff or too flimsy. Just perfect and last a long time. Many technicians consider them the best blades in the market