Home / Milling / Mill Tooling / Boring Head, 5″, 50 NMTB Shank Boring Head, 5″, 50 NMTB Shank$195.00 Category: Mill Tooling Description Description 5″ Boring Head w/ 50 NMTB Arbor, Uses 1″ Boring Bars, 1″- 8 TPI Draw Bolt, 23 Pounds Related products Arbor, Horizontal Milling, 30 NMTB, 1″ x 1/4″ Key, Beaver Tool (C) $149.00 Read more Boring Head, R-8, Diameter 2-1/2″, 1/2″ Bars Everede $149.00 Read more Collet Chuck, 50 NMTB w Collets Bofors Sweden $149.00 Read more Boring Head, R-8, Bridgeport, Diameter 3″, Bad Shank Item # L61043C $95.00 Read more