TTC PRODUCTION High Speed Steel Taper Shank Core Drills - Overall Length : 6-1/8" Flute Length : 3-3/4" Morse Taper: Flute Shape: Normal spiral - helical flutes Manufacturing Method: Cylindrically ground Size : 1/4"

Description

For enlarging existing punched or drilled holes. Straight shank is to be used in a chuck or collet and sized proportionally to the drill diameter. Used with either portable or stationary machines. For enlarging holes in normal steels, cast iron, and a variety of other ferrous and non-ferrous metals and alloys. For optimal performance and extended tool life, use of suitable lubricating/cutting oils or appropriate coolant fluids is recommended.