The Hakko T31-021401 is a popular spatula shape tip for the exclusive use with the Hakko FX-1001 soldering iron handpiece. The T31-021401 uses a highly precise manufacturing and process control method that allows for a more repeatable tip temperature between not only the same tip shape, but even between tips of different shapes but within the same series.

The spatula shape tips are generally used for the simultaneous soldering of mulitple leads along one side of an SMT component, or when used with desoldering wick for the removal of residual solder from a BGA component area. IT is also used for soldering RF shielding found on some PCSs and other hot bar type applications.