Home / Milling / Mill Tooling / Boring Head, R-8, Diameter 3″, Takes 3/4″ Bars View cart “Boring Head, Straight Shank, 2-1/4″ Diameter, Lincoln Machine Specialty” 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 Collet Chuck, 30 Taper w/ Collet 1/4”, 3/8, 1/2, 5/8, 3/4, 1” by 1/8ths $80.00 Add to cart Arbor, Boring Head, 30 NMTB 1-1/2″ 18TPI $30.00 Add to cart Boring Head, No Shank, Diameter 1-3/4″, Erickson Tenthset $25.00 Add to cart Aluminum T-Slot Bolster Plate Table 9″ x 28″ x 1-1/2″ Thick, 7/16″ Slot $125.00 Add to cart