THIS IS AN ALLIED MACHINE & ENGINEERING #4 T-A SHT DRILL, MODEL 234T-1500, FEATURING A STRAIGHT FLUTE TYPE. THE DRILL HAS AN OVERALL LENGTH OF 10.500 INCHES AND A BODY LENGTH OF 6.500 INCHES. THE BODY DIAMETER MEASURES 1.84 INCHES, WHILE THE SHANK DIAMETER IS 1-1/2 INCHES. THE SHANK LENGTH IS 4.000 INCHES.