Runout-Adjustable Toolholders

NT Tool’s CTZ R-Zero runout-adjustable toolholders for large-diameter cutting tools use the company’s original four-point adjustment mechanism, which allow runout at the tool tip that can be easily adjusted to as little as 0 - 2 micrometers on cutting tools with shank diameters from 25 - 42 mm (or 1” - 1.5”).

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NT Tool’s CTZ R-Zero runout-adjustable toolholders for large-diameter cutting tools use the company’s original four-point adjustment mechanism, which allow runout at the tool tip that can be easily adjusted to as little as 0 - 2 micrometers on cutting tools with shank diameters from 25 - 42 mm (or 1” - 1.5”).

Unlike the single-point adjustment mechanisms, NT Tool’s original four-point adjustment mechanism allows for quick and easy adjustment of cutting tool runout. By tightening the four adjustment screws, cutting tool runout at the tool tip can be reduced to 0 - 2 micrometers regardless of the maximum runout location. 
The toolholders are ideal for precision holemaking operations, especially large-diameter reaming. The toolholders’ ability to minimize runout provides for excellent surface finish, improved cutting tool life and consistent hole diameters, the company says.
The toolholders are available in CAT (standard and two-face contact), BT (standard and two-face contact), HSK and UTS shank styles. Designed to complement the company’s HDZ R-Zero toolholder series (for cutting tools ranging from 0.5 mm – 22 mm), they are offered in metric sizes of 25 mm, 32 mm and 42 mm, and inch sizes of 1”, 1.25” and 1.5”, with MC collets for cutting tools of other sizes.

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