Home / Milling / Mill Tooling / Boring Head, Straight Shank 3/4″, Diameter 2-1/2″, APT Sale! Boring Head, Straight Shank 3/4″, Diameter 2-1/2″, APT$149.00 $134.10 Category: Mill Tooling Description Description APT 2-1/2″ Diameter, 3/4″ Straight Shank, Takes 1/2″ Boring Bars Related products Sale! Boring Head, R-8, Diameter 4″, 1″ Boring Bars, Criterion L624R8 $349.00 $339.00 Read more Sale! Arbor, Horizontal Milling, Straight Shank 1-1/4″, 1″ x 1/4″ Key $75.00 $67.50 Read more Sale! Boring Head, R-8, Diameter 2-1/2″, 1/2″ Bars Everede $149.00 $139.00 Read more Sale! Holder, End Mill, Jarno $14.95 $13.45 Read more