Wire drawing is not used as a method of brush manufacture by Hillbrush, but is still used for small quantity production and for some very high quality brushes. With wire drawing, the brush back is in two halves.
The front part, into which the tufts are filled, has the tuft holes pre-bored with much smaller diameter holes right through the back of the stock. A continuous strand of wire then threads up through one tuft hole, around the tuft (which is pulled into the hole) back down the hole and onto the next tuft. When all of the tuft holes have been filled, the wire is tied off and often, glue is spread across the brush back (over the wire), so that if the wire broke, not all of the tufts would come out. Finally, the back part of the stock is screwed onto the front part (with the tufts in) to cover the wires.