2" BORING HEAD STRAIGHT SHANK AND 9 PC 1/2" BORING BAR SET 2'' Boring Head With Straight Shank Set Head size: 2" ; Boring bar Hole: 3/4" Cross Hole Diameter: 1/2"; Head Dial: 7/8''-20;Max offset: 5/8" ; graduation: .002'' Style: straight shank Quantity: 1;Case INCLUDED;Case overall dim: 8''L x 9''W x 2-1/2''H ; Weight: 5 lbs (with case)