Home / Milling / Mill Tooling / Boring Heads / Arbor, Boring Head, 30 NMTB 1-1/2″ 18TPI Arbor, Boring Head, 30 NMTB 1-1/2″ 18TPI$30.00 Category: Boring Heads Description Description 30 NMTB Boring Head Arbor, 1-1/2″-18TPI Related products Boring Head, 4″, 50 NMTB Shank, Flynn $149.00 Read more Boring Head, Unknown Shank, Diameter 3″ $125.00 Read more Boring Head, R-8 3″ Square, 1″ Boring Bars Armstrong $149.00 Read more Boring Head, Straight Shank 5/8″, 1-7/8″ Diameter $59.00 Read more