Eztronics Corp&reg; Carbon Motor Brushes Replacement for Dremel Power Rotary Tool Accessories 11x6x4.8mm 11.1x5.3x4.9mm 9.6x5.6x5mm 9.7x6.5x5.6mm 11.5x6x5mm 8.2x4.8x4.8mm (9093511x6x4.8mm) Carbon Brushes 90827 for use with Dremel rotary tool model(s): 270, 280, 370, 380. Motor brushes 90828 for use with Dremel rotary tool model(s): 232, 332. One pair of motor brushes 90929 for use with Dremel rotary tool model(s): 275, 285, 395 (Type 1,2). Carbon Motor Bursh 90931 and 90935 for use with the Dremel model 732 and 398 Digital rotary tool.