Home / Milling / Mill Tooling / Boring Head, 30 NMTB, Diameter 3-1/2″, Enco View cart “Boring Head, Morse Taper #4, Precision Universal Automatic Item #L6305” has been added to your cart. Boring Head, 30 NMTB, Diameter 3-1/2″, Enco$249.00 1 in stock Add to cart Category: Mill Tooling Description Description Enco 3-1/2″ Boring Head w/ 30 NMTB Shank, Takes 3/4″ Boring Bars Related products Boring Head, Morse Taper #4, Precision Universal Automatic Item #L6305 $295.00 Add to cart Boring Head, No Shank, Diameter 1-3/4″, Erickson Tenthset $25.00 Add to cart Collet Chuck, 30 NMTB, Collets TG-100 Erickson $199.00 Add to cart Boring Head, R-8, Bridgeport, Diameter 3″, 5/8″ Bars Item # L61043A $149.00 Add to cart