Home / Milling / Mill Tooling / Arbor, Horizontal Milling, 50 NMTB, 1-1/2″ x 5/16″ Keyway View cart “Boring Head, R-8, Diameter 4″, 1″ Boring Bars, Critereion L624R8” has been added to your cart. Arbor, Horizontal Milling, 50 NMTB, 1-1/2″ x 5/16″ Keyway$95.00 1 in stock Add to cart Category: Mill Tooling Description Description 50 NMTB 1-1/2″ x 4-1/2″Long Arbor, 5/16″ Key, 23/32″ Stem, OAL 11-1/4, Made In Poland, 11 Pounds Related products Quick Change Tooling, R-8, Narex $99.00 Add to cart Boring Head, Straight Shank 3/4″, Diameter 3″ $29.00 Add to cart Boring Head, Straight Shank 1″, Diameter 2-1/2″, Erickson Tenthset $85.00 Add to cart Boring Head, Straight Shank 1″, Takes Y Collets, Universal $49.00 Add to cart