E NCCER 29110 - Joint Fit-Up and Alignment What is the V.shaped head attachment of a combination square used for? aligning plate joints measuring blind hole depth layout 90-degree and 45-degree angles locating the center of shafts or other round objects

## Step 1<br />The V-shaped head attachment of a combination square is a tool used in carpentry and metalworking. It is designed to help align plate joints, which are the joints where two plates are joined together.<br /><br />## Step 2<br />The V-shaped head attachment is not used for measuring blind hole depth. Blind hole depth refers to the depth of a hole that does not go all the way through the material. This is typically measured using a different tool, not a combination square.<br /><br />## Step 3<br />The V-shaped head attachment is not used for laying out 90-degree and 45-degree angles. This is typically done using a different tool, such as a protractor or a set square.<br /><br />## Step 4<br />The V-shaped head attachment is not used for locating the center of shafts or other round objects. This is typically done using a different tool, such as a center punch or a drill press.