Question

1. fill in the blank:____pillers are used to grip irregular parts and hold work in place while drilling.

Explanation:

Locking pliers are designed to firmly grip irregular parts and hold them in place. This functionality is crucial when drilling as it ensures stability. Other types like slip - joint are more for gripping and turning, needle - nose for reaching into tight spaces, snap - ring for handling snap - rings, and Phillips is a type of screwdriver tip (not a plier for this purpose).

Answer:

Locking