Home / Milling / Mill Tooling / Boring Head, No Shank, Bridgeport, Diameter 3″ Boring Head, No Shank, Bridgeport, Diameter 3″$149.00 Category: Mill Tooling Description Description Uses a 1-1/4″ 20 TPI Threaded Arbor 5/8″ Boring Bars 5 Pounds Related products Boring Head, Unknown Shank, Diameter 3″ $125.00 Read more Holder, End Mill, Quick Change, Yuasa, Set of 3 $75.00 Read more Holder, End Mill, 40 NMTB 5/8″ EM $40.00 Read more Holder, End Mill, Brown & Sharpe #7, 3/16″ $20.00 Read more