Home / Milling / Mill Tooling / Boring Heads / Boring Head, 3″, Straight Shank 1-1/2″, Criterion S-3 Boring Head, 3″, Straight Shank 1-1/2″, Criterion S-3$125.00 Category: Boring Heads Description Description Criterion S3 Boring Head, 3″ Square Head, 1.5″ Shank, Uses 1″ Boring Bars, 8 Pounds Related products Boring Head, #742, Moore $225.00 Read more Boring Head, 4″ Super Tool 2″ 13 TPI $100.00 Read more Boring Head, Automatic, 30 NMTB $149.00 Read more Boring Head, Brown & Sharpe 9, Diameter 4″, Flynn, Item # L63094 $295.00 Read more