Neilwa, Sorry mate, the drill pipe is NOT made of the same stuff all the way down.The pin and box are 500% harder than the drill pipe. You want a mill that cuts Cement, cuts drill pipe, then has to mill up the box and pin end. This is what makes milling a night mare. Now if you had just given GDN 5Mil, would you be thinking now what the hell have I done. Big questions are being asked as we read this post.
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