Home / Milling / Mill Tooling / Boring Heads / Boring Head, R-8 shank, Diameter 3″, Import Boring Head, R-8 shank, Diameter 3″, Import$99.00 Category: Boring Heads Description Description Boring Head 3″ with removable R8 shank (new old stock) Related products Arbor, Boring Head, 30 NMTB 1-1/2″ 18TPI $30.00 Read more Boring Head, 4″, 50 NMTB Shank, Flynn $149.00 Read more Boring Head, Brown & Sharpe 9, Diameter 4″, Flynn, Item # L63094 $295.00 Read more Boring Head, 4″ Super Tool 2″ 13 TPI $100.00 Read more