Home / Milling / Mill Tooling / Boring Head, R-8, Diameter 4″, 1″ Boring Bars, Critereion L624R8 View cart “Collet Chuck, 40 NMTB, Collets B & S 21 Brown & Sharpe” has been added to your cart. Boring Head, R-8, Diameter 4″, 1″ Boring Bars, Critereion L624R8$349.00 1 in stock Add to cart SKU: L624R8 Category: Mill Tooling Description Description Criterion 4″ Boring Head, 1″ Boring Bars, R-8 Shank, DBL-204 Related products Quick Change Set,R-8, Enco Item # L5708 $295.00 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 Boring Head, Staight Shank 1″, Diameter 1-3/4″, Erickson Tenthset (C) $49.00 Add to cart Collet Chuck, Brown & Sharpe #9, B &S Uses Z Collets $49.00 Add to cart