Home / Milling / Mill Tooling / Arbor, Horizontal Milling, 50 NMTB, 1-1/2″ x 5/16″ Keyway View cart “Boring Head, Straight Shank, 2-1/4″ Diameter, Lincoln Machine Specialty” 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 Collet Chuck, 40 NMTB, Collets B & S 21 Brown & Sharpe $195.00 Add to cart Boring Head, R-8, Diameter 4″, 1″ Boring Bars, Critereion L624R8 $349.00 Add to cart Boring Head, Straight Shank, 2-1/4″ Diameter, Lincoln Machine Specialty $49.00 Add to cart Boring Head, R-8, Bridgeport, Diameter 3″, 5/8″ Bars Item # L61043A $149.00 Add to cart