Milwaukee 48-25-3001 3-Inch Bit with 1/2-Inch Shank Selfeed Bit

by Milwaukee

Product Description

From the Manufacturer

Has removable and replaceable feed screws. Two feed screws furnished with each bit. Feed screw provides fast, effortless feeding even in gummy woods. Inside cutting plane shaves hole radius for clean, smooth holes without pressure. Bits has a 1/2 hex shank."

Product Description

The inside cutting plane shaves the hole radius for clean smooth holes without pressure. A removable, replaceable feed screw draws the bit into the gummiest of woods effortlessly. A 7/16'' hex shank provides a secure gripping surface for the drill chuck. The bit is coated with a rust inhibitor. Removable and replaceable feed screw for longer life. Cutting edges can be resharpened.

Product Details

• Shipping Weight: 2 pounds (View shipping rates and policies)
• Shipping: This item is also available for shipping to select countries outside the U.S.
• Shipping Advisory: This item must be shipped separately from other items in your order. Additional shipping charges will not apply.
• ASIN: B0000224A0
• California residents: Click here for Proposition 65 warning.
• Item model number: 48-25-3001
• Average Customer Review: 4.0 out of 5 stars  See all reviews (18 customer reviews)
• Amazon Best Sellers Rank: #83,022 in Home Improvement (See Top 100 in Home Improvement)
  • #24 in Home Improvement > Power & Hand Tools > Power Tool Accessories > Drill Bits > Self-Feed Bits
  • #62 in Home Improvement > Power & Hand Tools > Power Tool Accessories > Drill Bits > Boring Bits

Customer Reviews

Most Helpful Customer Reviews

11 of 12 people found the following review helpful:

4.0 out of 5 stars Great Selfeed Bit Chokes on Cut Nails, June 18, 2000

By 

Curtis Mcqueen (Kempton, Pennsylvania) - See all my reviews
(REAL NAME)   

This review is from: Milwaukee 48-25-1501 1-1/2-Inch Bit with 7/16-Inch Shank Selfeed Bit (Tools & Home Improvement)

An HVAC friend of mine recommended Milwaukee's series of big selfeed bits for the do-it-myself job of retrofitting a radiant, underfloor heating system in our 112-year-old one-room schoolhouse. I like to learn how the pros do things, and as every professional electrician and plumber must know already, these bits work great, but with at least one limitation. Running the tubing for our underfloor radiant heat requires drilling many holes through old 2 1/2" joists and the blocking between them. I began the job yesterday and, I'm afraid, got a little carried away. With a powerful right-angle drill, the bit seemed to stop at nothing and the work went fast. The selfeed tip pulled my 1 1/2" cutter through effortlessly, and to finish off a hole (once the tip punched through and lost its grip) all that was needed was a little pressure from me. The holes were clean, and the chips were everywhere! Nothing would stop this bit, I thought. Little did I know that old-fashioned cut nails had been used to nail down a 1950's plywood subfloor. I soon found one of those nails with my bit, and thinking this thing would go through anything, I waited patiently for it to chew up the nail and spit it out with the chips. Soon I found myself wrestling with the drill, pushing harder and harder, going in from the other side for a counterattack, giving up, trying again, and then finally admitting to myself that the "threads" had been destroyed on the selfeed tip. The nail sat square in the middle of the hole, unbent and barely scratched. Milwaukee sells their bits with an extra tip so when this kind of thing happens work may go on. But being who I am, I soon had the second tip ruined and the job only 40% done. And there's no drilling without that tip. I tried. No go. Back at the store they set me straight: these bits are not meant to handle nails, especially the hard metal of old cut nails. Hit a nail? Back off immediately and start a new hole where hopefully there is no nail. I like to learn how the pros do things, and as every professional electrician and plumber must know already, these bits work great, but they're not meant for nails.

21 of 26 people found the following review helpful:

1.0 out of 5 stars the bit that used to be excellent, February 15, 2003

By 

jesus garcia (northern virginia) - See all my reviews

This review is from: Milwaukee 48-25-2561 2-9/16-Inch Selfeed Bit with 7/16-Inch Hex Shank (Tools & Home Improvement)

we have been using this brand of bits for the past 8 years. the bits that i have purchased in the past 7 months have not met our expectations. they wear out after drilling ten holes. In the past they have lasted atleast 3 hundred holes. the set screws are wearing out a lot faster as well. They have lost their durability. I would like to continue using these bits, but we need the quality that milwaukee used to have.

3 of 3 people found the following review helpful:

5.0 out of 5 stars Great bit for runing drain pipe, January 24, 2009

By 

Andrea F "James F" (NJ United States) - See all my reviews

If you plan on running drain pipe through studs, you are going to have to make some holes. Augers and spade bits only go up to inch and a half- thats the size of the pipe, so they're out. You need to make holes at least 2 inches, so that leaves you with self feeds or holesaws.

Holesaws are cheaper, but they are also slower. You have to stop after each hole and wrestle the spent plug of wood out of the holesaw body. Very time consuming. If you hit a nail with the holesaw, it's game over. Self feeds can be resharpened with a file.

On the other hand, with this self feed bit, ther is no stoping to get plugs out- there are no plugs-Just a nice pile of wood shavings. The self feed bit has a lead screw that pulls it through the workpiece. All in all a sweet and smooth operation.

I used this bit when I added a laundry sink to my laundry room. Runing the vent drains were no problem with this bit making adequate sized holes for me.

The only downside to this bit is it requires a 1/2 inch drill to operate. (But so would most larger holesaws) The 7/16 shank also mandates a 1/2 inch chuck. Self feed bits generally also require a drill that has some power. My Milwaukees had no problem spining it, nor did my 14.4 Makitas, My Ridgid hammer drill, or my Metabo angle drill.

This is a pretty serious bit that normally costs a decent amount of money, (close to 30 dollars) so I tend to treat it with more care than other bits that costs less. I avoid running into nails whenever possible.

I use the side handle on the drill I am using it with to avoid getting hurt in the event that the bit stalls in the wood while the drill keeps going.