Home / Milling / Mill Tooling / Boring Heads / Boring Head, Automatic, Jig Bore Shank, Chandler Duplex Boring Head, Automatic, Jig Bore Shank, Chandler Duplex$149.00 Categories: Boring Heads, Jig Bores Description Description Diameter of head 2-1/8″, Holds 1/2″ Boring Bars Related products Boring Head, Morse Taper #3, Diameter 3-1/2″, Enco, Item # L63035 $249.00 Read more Sale! Boring Head, R-8, Diameter 4″, 1″ Boring Bars, Criterion L624R8 $349.00 Original price was: $349.00.$275.00Current price is: $275.00. Read more Boring Head, Straight Shank 1″, 5 Y Collets, Universal $49.00 Read more Arbor, Boring Head, 30 NMTB 1-1/2″ 18TPI $30.00 Read more