YOUR CHOICE FOR BORING THE REALLY BIG STUFF.

R 8 BORING HEAD ARBOR WITH 1 1/2-18 THREADS AND 7/16-20 DRAWBAR THREADS An arbor for the boring head.  

CAT 40 BORING HEAD ARBOR WITH 1 1/2-18 threads and  5/8-11 drawbar threads Boring Head Holders  Constructed of alloy steel for long, durable service life Hardened to Rc: 56-60 for long service life Shiny taper with black oxide finish for the best combination of accuracy and durability ParSymmetry design for high-speed operation