Home / Milling / Mill Tooling / Boring Head, R-8, Diameter 3″, Takes 3/4″ Bars View cart “Boring Head, Straight Shank 1″, Diameter 2-1/2″, Erickson Tenthset” 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 Boring Head, Straight Shank 1″, Diameter 2-1/2″, Erickson Tenthset $85.00 Add to cart Collet Chuck, 30 NMTB, Collets TG-100 Erickson $199.00 Add to cart Arbor, Boring Head, 30 NMTB 1-1/2″ 18TPI (A) $25.00 Add to cart Boring Head, Morse Taper #4, Precision Universal Automatic Item #L6305 $295.00 Add to cart