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, Straight Shank 1″, 5 Y Collets, Universal $49.00 Read more Boring Head Set, 3″, R-8 (NEW) Import, Item # GE65NBH-203S $158.95 Read more Boring Head, CAT 40, 3″ Diameter, Criterion, Item # L62340 $249.00 Read more Boring Head, 1″ Straight Shank, 3″, Criterion $149.00 Read more