Home / Milling / Mill Tooling / Boring Heads / Boring Head, 1″ Straight Shank, 3″, Criterion Boring Head, 1″ Straight Shank, 3″, Criterion$149.00 Category: Boring Heads Description Description Criterion 3″ Square Head Boring Head w/ 1″ Straight Shank takes 1″ Boring Bars Related products Boring Head, R-8, Bridgeport, Diameter 2″, Item #L6101 $225.00 Read more Boring Head, Straight Shank, 3/4″, Criterion 2″, S-2, Item # L622.75A $125.00 Read more Boring Head, R-8, Bridgeport, Diameter 3″, Item #L61043B $149.00 Read more Boring Head, 4″ Super Tool 2″ 13 TPI $100.00 Read more