000 589 69 03 00 Box Wrench Bit - WS46.00-P-0002B

MODEL ALL 

FG 35/46/42/Set B 

Use: 

Open ring spanner bit 17 mm, 3/8" square

Model 454: 

For high pressure expansion hose.

Model 451.39/49: 

For releasing or tightening the threaded connection of the left and right rear brake hose.

Courtesy of MERCEDES-BENZ USA