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Re: How to Make a Clean Hole with 1 1/8" Dill Bit?
Whatever option you choose, if it is not carbide, make sure you use oil! Also, we bought a cheap mega-box of chip brushes at harbor freight. We use them to brush away chips whenever we are cutting anything. It helps the drill cut more efficiently and prevents chips from getting in the way of the oil (sometimes it helps if there is oil on the brush). Also, please be really careful to secure your work onto the machine otherwise it will wobble.
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Junior at the University of Notre Dame, Mechanical Engineering
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