Home / Milling / Mill Tooling / Boring Head, R-8, Diameter 3″, Takes 3/4″ Bars View cart “Collet Chuck, 40 NMTB, Collets B & S 21 Brown & Sharpe” has been added to your cart. Boring Head, R-8, Diameter 3″, Takes 3/4″ Bars$85.00 1 in stock Add to cart Category: Mill Tooling Description Description 3″ Offset Boring Head w/ R-8 Shank, takes 3/4″ Boring Bars Related products Quick Change Set, Morse Taper #5 MT, Neal Skokie $295.00 Add to cart Boring Head, R-8, Diameter 4″, 1″ Boring Bars, Critereion L624R8 $349.00 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