BC-100-BB2000 Brake Boss Wrench
Brak Chek
$30.00
Brake Boss Wrench
Drivers wrench for backing off over adjusted (tight) S-cam brakes on trucks and trailers.
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Hex sizes are 9/16", 7/16", 12mm and 5/16" square.
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9/16" for manual adjusters and Bendix ASA-5
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7/16" for Crewson, Gunite and Haldex ABA
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12mm for some older model Borg and Beck
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5/16" square for Meritor (Rockwell)