# Shaping the Shank with Boolean Difference

### **Boolean Difference**

In the **Solid** tab, select **Boolean Difference**.

![](https://www.rhinoartisan.com/wp-content/uploads/2024/07/Boolean.png)

* Select the **shank**, press **Enter**, then select the offset solid, and press **Enter** again.

### **Check Shank Fit**

* Use **Hide** to conceal the gem and examine the seat created in the shank.
* Use **Show** to bring the cabochon back.

![](https://www.rhinoartisan.com/wp-content/uploads/2024/11/Boolean.png)

### **Video Lesson**

In this lesson, we’ll use Boolean Difference to carve out the area for the cabochon to sit in, making sure it has a precise fit within the shank.

{% embed url="<https://www.rhinoartisan.com/wp-content/uploads/2024/11/Lesson-4-2.mp4>" %}

**Next Step**: With the shank and cabochon perfectly fitted, we’ll move on to smoothing the edges for rendering in the next lesson.