Home / Milling / Mill Tooling / Boring Head, 45 Taper, Diameter 4″, 1″ Boring Bars View cart “Boring Head, Straight Shank 3/4″, Diameter 3″” 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 1-1/2″, Diameter 2″, Criterion L62215S $149.00 Add to cart Boring Head, No Shank, Diameter 1-3/4″, Erickson Tenthset $25.00 Add to cart Collet Chuck, 40 NMTB, Collets B & S 21 Brown & Sharpe $195.00 Add to cart Boring Head, Straight Shank, 2-1/4″ Diameter, Lincoln Machine Specialty $49.00 Add to cart