Home / Milling / Mill Tooling / Boring Head, R-8, Diameter 3″, Takes 3/4″ Bars View cart “Aluminum T-Slot Bolster Plate Table 9″ x 28″ x 1-1/2″ Thick, 7/16″ Slot” 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, 2-1/4″ Diameter, Lincoln Machine Specialty $49.00 Add to cart Boring Head, No Shank, Diameter 1-3/4″, Erickson Tenthset $25.00 Add to cart Boring Head, Straight Shank 1″, Diameter 2-1/2″, Erickson Tenthset $85.00 Add to cart Boring Head, R-8, Bridgeport, Diameter 3″, 5/8″ Bars Item # L61043A $149.00 Add to cart