Qualtech Center Reamer Countersink, Series: DEWCSK, 3-1/2 in Overall Length, Round Shank, 1/2 in Shank dia, 3 Flutes, 120° Included Angle, 1 in Minimum Cutting dia, HSS, Bright Qualtech DEWCSK1-120 Center Reamer Countersink, 1/2 in dia Shank, 3 Flutes, 120° Included, 1 in dia Min Cutting, HSS