This Canadian made 41mm striking wrench features a precision broached 12 point box end ensuring a tight and secure fit with the fastener. Its 45° offset head design permits access to recessed nut and bolts. The large and robust striking block provides are large striking area for increased safety and maximum surface contact. The wrench is made using premium tool steel and finished in a corrosion resistant black oxide finish. Gray Tools striking wrenches meet ANSI standards and are covered by a limited lifetime warranty.