You can put heavy grease on the bit and turn turn it slow so the grease won't fly off. Not usually a problem on manifold bolt holes in a head as I've never seen one that wasn't a blind hole. It would be a different story if you were drilling, say, over an open intake or such. Stuff holes you don't want slag or drillings in with wet rags, and cover things you don't want melted/pitted with wet rags, especially cover glass. A couple months ago I had to blow 4 broken studs or bolts, not sure which, out of the passenger side head, of my cousin's 99 Chevy pickup with a 454. They had been broken off for about 10 years. Only access I had was through the fender well, what a pain. Had to lay wet towels over the fuel lines and wiring harnesses. Took quite a while as after I blew the four holes out, my cousin bottomed out a tap and broke it off in the hole, then broke another off in a hole, that tap had clearly been cracked halfway through for quite some time.
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Today's Featured Article - Usin Your Implements: Bucket Loader - by Curtis Von Fange. Introduction: Dad was raised during the depression years of the thirties. As a kid he worked part time on a farm in Kansas doing many of the manual chores. Some of the more successful farmers of that day had a new time saving device called a tractor. It increased the farm productivity and, in general, made life easier because more work could be done with this 'mechanical beast'. My dad dreamed that some day he would have his own tractor with every implement he could get. When he rea
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