Lisle's 90 Degree 1/2" Driving Wrench, No. 43500, works where an impact wrench won't fit. It has a right angle design that gives the technician access to hard-to-reach bolts. The tool works on harmonic balancer bolts, transmission bolts, cam bolts and others. It will both loosen and tighten. Use with an air hammer and the 43370 Driving Wrench, which can be purchased individually or used with Lisle's 43300 Pneumatic Fan Clutch Wrench Set, 1/2" breaker bar and 1/2" impact sockets. Made in the USA.