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Centering bit 48-20-5495 (included) is recommended for exact spot drilling and to avoid bit wandering during use. the drift key 48-20-5497 (not included) allows for easy removal of the centering bit. the one piece core bits are available in sds-max or spline shanks, ranging from 1-1/2” to 6” diameters and overall lengths of 11-3/8” or 22”, with a drilling depth of 3”.

A drill rod is a form of bar stock machined to produce tools such as drill bits, taps, dowel pins, shafts, reamers, files, punches and hammers. it's soft enough to shape but can be heated up to revert back to the hardness. drill rods are manufactured from tool steel …

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