On 2004-07-31 El Gallinazo, Costa Rica wrote: Regarding the other review - as a plumber in the Virgin islands, I know full well that not only will these bits not eat nails, they are wrecked by them. Cut nails are a much harder and less maliable steel than a regular nail, and also a much harder steel than these bits, which are not carbide. I try to take care not to hit nails when using them. It ruins their cutting edge in seconds. Fortunatle they can be resharpened with a Dremel quickly and I always keep one handy in my truck.
If I cannot avoid a nail, I switch to a bimetal hole saw. While the Selfeed is really a Forstner and planes out the whole hole, a hole saw makes it a lot easier to cut around the nail, and these bits are rated for metal as well (although cut nails will probably rip their teeth off). The downside of the hole saw is that most only drill to two inches, and they are much, much slower than Selfeeds. Also, it´s tedious to extract the wood core after each hole. A pro keeps both and keeps his eyes open.. And summed up by saying Won´t eat nails. Currently Milwaukee 48-25-1501 1-1/2-Inch Bit with 7/16-Inch Shank Selfeed Bit has an overall rating of 8 over 10.
Milwaukee 48-25-1501 1-1/2-Inch Bit with 7/16-Inch Shank Selfeed Bit can also be found in the following searches:
Milwaukee claimed Many Electricians and Plumbers rely on Milwaukee´s Selfeed Bits for large hole drilling in wood. 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 hex shank provides a secure gripping surface for the drill chuck. The bit is coated with a rust inhibitor. Available in 1 inch, 1-1/8 inch, 1-1/4 inch, 1-3/8 inch, 1-1/2 inch, 1-3/4 inch, 2 inch, 2-1/8 inch, 2-1/4 inch, 2-9/16 inch, 3 inch, 3-5/8 inch and 4-5/8 inch diameters. Use Feed Screw 48-28-6870, Socket Wrench 49-96-0060 and Set Screw 06-83-2625 on diameters less than 3inches. One per package.FEATURES: 1-1/2 in. bit diameter. 7/16 in. hex shank. Removable and replaceable feed screw. Cutting edges can be resharpened
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