Timberline 440-32 2-PC Carbide Tipped Tongue & Groove 1-3/4 D x 1-1/8 CH x 1/4 Kerf x 1/2 Inch SHK w/ Lower BB Router Bit Set for 5/8 - 1 Material

Cutperfectly fitted tongue-and-groove joints on stock between 5/8" and 1" thick with a table-mounted router.
