I was trying to drill out a busted driveshaft spline in a New Holland 617 disc mower gearbox. I chewed up 3 "standard carbide masonary bits" because they are so hard that the vibration and heat destroy the inserts. I then went to Ace Hardware of all places and they sold me a softer carbide bit which was made specially for drilling hardened steel. It worked great until I snapped it off. I then learned I could press out the busted piece which of course meant all the drilling was a waste of time. Check and see if you can buy the special carbide bit for drilling steel. If all else fails, take a punch and break the dang thing up into little pieces and then drill and tap the resulting mangled hole to the next bigger size and be done with it. John
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Today's Featured Article - Memories of an IH Super A When I was ? up to 10, I worked on my Papaw's farm in Greeneville, TN every summer. As I grew older (7), it was the thrill of my day to ride or drive on the tractor. My Papaw had a 1954 IH Super A that he bought to replace a Cub. My Papaw raised "baccer" (tobacco) and corn with the Super A, but the fondest memory was of the sawmill. He owned a small sawmill for sawing "baccer" sticks. The Super A was the powerplant. When I was old enough (7 or 8), I would get up early and be dressed to
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