Make a handle straight on an electric heater by using an instrument called 'tamebou'. When other makers make Japanese-style paintbrushes, they farm out to produce bristles, holders, and glue attachment to final products to subcontractors. Seishindo does all procedures including handle attaching in own workshop.
Cut handles by electric-cutter. Making brushes require many handworks. The only changes are to use an electric-iron from an iron file heated on charcoal, and an electric saw from hand saw.
Put wister vine at the end of the holder to improve holder's strength.
Make suface flat and smooth by a tool at the heel of handle.
Arrange head-shape of handle. Handle is ready now.
Cut at the heel of the bristle to fit in the handle.
Smooth inside of the handle to set the bristle well.
Put glue into a handle head and adjust the length of the bristle.
Add natural glue (made from seaweed) in dry brush.
Take off natural glue by string and arrenging the shape of the brisle.
Dry the finish product slowly.
Finally put a celluloid cap and name on the handle.