You will need these crank bolt sockets using an impact wrench to increase torque to help remove the stubborn crank bolt. SIZE INCLUDE : These sizes are 17mm, 19mm, 21mm,22mm,24mm and 27mm large deep impact sockets.

Brand: VEEMASTER
Socket Type: Harmonic Balancer Socket
Drive Type: square
Color: Black
Size: 17mm, 19mm, 21mm, 22mm, 24mm, 27mm
Drive Size: 1/2in.
Manufacturer Part Number: 77060+77080+77100+77110+77070+77120
Set or Single Item: Set
Number of Pieces: 6