Assembling and Adjusting the Spade Bit

What happens here

The presenter meticulously explains how to prepare the spade bit for drilling. He first shows how to insert and secure the threaded pilot bit, which serves as the guide for the entire assembly. Following this, he uses a small Allen wrench (hex key) to loosen a set screw on the bit's body, allowing for the quick removal and insertion of different sized cutting blades. He demonstrates putting a smaller 1-1/8 inch blade into the bit, securing it, and then switching to a larger 1-3/4 inch blade. The set provides flexibility for various plumbing (e.g., 1-1/2 inch) and electrical (e.g., 2 inch) conduit sizes.

Goal: This step demonstrates how to properly assemble the Milwaukee 'Switchblade' spade bit by installing or replacing the pilot bit and changing the cutting blades to achieve the desired hole size.