A great tool this is, saves a lot of grafting.                            This Snap-on torque multiplier is a must-have for any mechanic's toolbox. With a quick release feature and a sturdy handle, this tool makes it easy to manoeuvre and provides a 4:1 ratio of torque transmission. The set includes two pieces, with a drive size of 1/2in. and a manufacturer part number of G184A. 4 to 1. 1/2 to 3/4. Made in the United States, this ratchet is perfect for all your garage equipment needs.