Tilton's Dowel Drilling Jig Kit 51-100 includes a drilling fixture, 11/16-inch core drill, two locating dowels, 20 step dowel pins, and 20 clutch housing sleeves. There are enough dowels and sleeves ...
Having made overhead concrete drilling easier with an innovative, upside-down drill press, Dr. David Rempel and his University of California, San Francisco research team have turned their attention ...
For several years now Dr. David Rempel and I have investigated concrete drilling at the University of California Ergonomics Program. We are looking for ways to protect construction workers from ...
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