This is provided by Google to ease the task of the developers. Google Software Development Kit (SDK) is basically an Android Kit which will help you to develop a command-based Android app along with its testing as well. What is the Difference between SDK and ADB? These two tools simply help the users to root their device by preparing a command-line program to accomplish the aim. ADB and Fastboot tools are frequently used by the developers or users to unlock Android phone or root Android device.
These tools work on command-line instructions which will help you access different types of hidden features in your phone. Minimal ADB and Fastboot commands are also the part of that kind of tools. The Android users often use some sort or variety of tools which will let them explore the hidden features or access the Administrator rights of their phone.
How to Download Minimal ADB and Fastboot Tool (v.1.4.3) 2019