What two parts make up a flaring tool kit?

A flaring tool kit is essential for creating a secure connection in refrigeration and air conditioning systems. The correct answer highlights that a flaring tool kit is comprised of two main components: a flaring block and a yoke.

The flaring block is used to hold the tubing in place while it's being shaped. It has specific grooves that correspond to various tubing diameters and helps achieve a precise flare. The yoke, which typically features a screw mechanism, is essential for compressing the tubing against the flaring block, ensuring a proper flare is formed without deformities that could lead to leaks.

Understanding the functionality of these components is vital for HVAC technicians, as a well-executed flare joint is crucial for maintaining system integrity and ensuring optimal performance. Other tools or parts mentioned in different options may serve other purposes in HVAC applications, but they do not form the primary assembly of a flaring tool kit, thus emphasizing the importance of recognizing the right components.