#4 & #41 Heavy Duty Boring Bar Holder: Equipped with a split bushing to accommodate a boring bar of smaller diameter. It grips the bar with extreme rigidity and cuts smoothly without chatter.
#4D & #41D Boring Bar Holder: Precision ground bore and split clamping design to accommodate excellent clamping pressure and the ability to adjust positive to negative cutting angle on the boring bar. Bushings Sold Separately.
#100, #104 & #141 Boring Bar Holder: Heavy duty boring bar holder with precision ground bore and set screw clamping to provide maximum rigidity and alignment of boring bars. Bushings sold separately.