Product Description
Pair of new replacement carbon brushes, part 192457. Compatible with the following models: 15-91 and 201-2 potted motor, 221 / 222K Featherweight, 401, 403, 404, 500, 503. You will receive two carbon brushes with springs.
Brushes need replacement when worn to approx 1/4" in length, both brushes should be replaced for correct balance. The original brushes measure approx 5.5mm x 5.5mm, the new replacements are 5mm by 5.5mm. They are a little smaller than the original but function just as well (I actually prefer the smaller size as there is less chance of them getting stuck within the brush tube). Be sure to install them so the concave surface of the brush corresponds to the shape of the commutator.
Usually ships same or next day. 
