Product Overview
Hole Enlarging Core Drills, 11/16" Hole Size, 0.6875 Decimal Equivalent, 1/2" Shank Size, 7/16" Minimum Starting Hole Size, 1-7/8" Flute Length, 4-5/16" Overall Length, High Speed Steel, 4 Flute, 3 Flats on Shank, Black & Gold Finish, Right Hand Spiral, 1 per Tube
