THIS ITEM IS AN AMEC 21861-0005 STRAIGHT FLUTE INSERT SPADE DRILL FROM ALLIED MACHINE & ENGINEERING. IT IS A STRAIGHT FLUTE SPADE DRILL WITH 2 FLUTES AND A SERIES F, MT5 TAPER SHANK. THE TOOL HAS A BLADE SIZE CUTTING RANGE OF 3 TO 3-7/8 INCHES. THE FLUTE LENGTH MEASURES 11-1/2 INCHES, AND THE OVERALL LENGTH IS 19-15/16 INCHES. THE SPADE DRILL COMES EQUIPPED WITH A 2T-6SR COOLANT ADAPTER.