437-5/16 — Cross-Reference

Yankee This 1/4 in diameter chucking reamer is made of high-speed steel with a spiral flute design for efficient chip evacuation in through-hole and blind-hole applications. It features a Morse Taper No. 1 (MT1) shank and a right-hand cutting direction, suitable for use in drill presses, lathes, and milling machines to precisely enlarge or finish drilled holes to tight tolerances.