About the Milwaukee 48-25-4125 model 4-1/8" Self-Feed Bit
The Milwaukee 48-25-4125 model 4-1/8" Self-Feed Bit is a part of the Self-Feed Bits Series. This comes with a 4-1/8" drill bit. This bit is made for drilling large holes in wood, and feature an inside cutting plane that shaves the hole radius for clean, smooth holes without pressure. It's removable, replaceable feed screw draws the bit into the gummiest of woods effortlessly.