Natural bristle cup brushes are mounted on 3/32" arbors. Available in 1/2" diameter (measured at flared end), they are designed to clean crevices. Sold by the dozen.
Straight or crimped brass wire cup brushes are mounted on 3/32" arbors. Available in 1/2" diameter (measured at flared end), they are designed to clean crevices. Sold by the dozen.
Straight or crimped steel wire cup brushes are mounted on 3/32" arbors. Available in 1/2" diameter (measured at flared end), they are designed to clean crevices. Sold by the dozen.