Bosch carbon brush 

Bosch 6.3×6.3×15.5/17mm

Bosch Models:

1122,1158.7,3125,3147.7,3230.4,3238.7,3239.7,3241,

3241.6,CSB 420-2,GBM6,GBM 450,GBM450RE,GSS 28,

ST350,GSS28A,PHS 36G,PHS 46G,PHS 66G,PSS230,

PST 50,PST50-2,PST 50E/50,PST 54,PST54E,

PST 54PE,PST 55PE,PST 60PAE,PST 60PE,

PST64PAE,SB350-2,SB350-E,SB400-2,SB520-2