Allen Wrench for Brake Drum Bolts for Harley Davidson

Used to tighten 3/8-20 Allen head threaded brake drum mounting bolts (MCS 515410 / 43530-35A) used on 41-72 Big Twin models.
Also compatible with brake drum mounting bolt kit 508829 with 7/16-20 oversized threads.

Fits: Big Twin > 41-72 (except FX 71-72)