Home / Milling / Mill Tooling / Boring Head, 45 Taper, Diameter 4″, 1″ Boring Bars View cart “Arbor, Boring Head, 30 NMTB 1-1/2″ 18TPI (A)” has been added to your cart. Boring Head, 45 Taper, Diameter 4″, 1″ Boring Bars$200.00 1 in stock Add to cart Category: Mill Tooling Description Description Yuasa 45 Taper Quick Change Boring Head, Takes 1″ Boring Bars Related products Boring Head, Straight Shank 3/4″, Diameter 3″ $29.00 Add to cart Quick Change Tooling, R-8, Narex $99.00 Add to cart Boring Head, Staight Shank 1″, Diameter 1-3/4″, Erickson Tenthset (B) $75.00 Add to cart Arbor, Boring Head, 30 NMTB 1-1/2″ 18TPI (A) $25.00 Add to cart