Break loose the crank shaft pulley / harmonic balancer bolt. Desinged to properly secure the pulley from rotating during R & R of crank bolt.
The height of head has two specifications for suitable different space, one is 30mm and the other is 75mm. The diameter of central hole has 35mm.
WARNING: California prop 65 - This product contains chemicals known to the state of California to cause cancer, birth defects or other reproductive harm. For more information go to https://www.p65warnings.ca.gov/