000 589 75 03 00 Box wrench bit - WS42.00-N-3000A

FG 42/Set A 

MODEL 460, 461, 463, 601, 900, 901, 902, 903, 904, 905, 906, WD1, WD2, WD3, WD6, WD7, XD1, XD2, XD3, XD4, XD5, XD6, XD7, YD1, YD2, YD3, YD4, YD5, YD6, YD7, 171, 221, 240, 667, 668, 669, 670 

Use: 

Box wrench bit for tightening brake lines in combination with 001 589 75 21 00.

Fig 1: Identifying Box Wrench Bit (000 589 75 03 00)

Courtesy of MERCEDES-BENZ USA