The phrase "a tool called" is correct and can be used in written English.
You can use it to introduce a specific tool or device. For example, "This project requires the use of a tool called a jigsaw."
AirTreks also developed a tool called trip journal.
Last year, a tool called Perma.cc was launched.
Google previously used a tool called DistBelief to perform many of the same tasks.
Michels taught him a tool called Cosmic Rage, which entailed his shouting "Fuck you!
Podemos members have also used a tool called Loomio to take the voting process online.
To achieve this, we switched from spreadsheets to code with a tool called Jupyter Notebooks.
QSSI built a tool called EIDM that is used in the registration process.
For example, a tool called Disconnect disables third-party tracking while Web surfing.
Your Productivity: Workflowy John Jantsch explains how a tool called Workflowy keeps him organized.
Bankrupt companies do this routinely under Chapter 11, using a tool called debtor-in-possession financing.
We've assembled a collection of those reactions using a tool called Storify.
