Allied Machine & Engineering T-A Pro™ Replaceable Drill Holder, Straight Flute, Series: 2 Series, Drilling Capacity: 0.961 to 1.38 in, 8.197 in Drill Depth, 1-1/4 in Shank Diameter, 2.28 in Shank Length, Flanged Shank, 10.235 in Drill Body Length to Flange, 12-3/8 in Overall Length, 10.095 in Drill Body Length, 7xD Drill Depth by Diameter Ratio