Monaghan Tooling Group Easyzero Compensation Nuts Eliminate Runout Errors in ER Collet Toolholding!


Monday 2 February 2026, 8:29:05 AM


Monaghan Tooling Group has introduced its Easyzero runout compensation nuts, offering a fast and practical solution for correcting misalignment and runout issues in round tools mounted in ER collet systems. Supplied in convenient kit formats, Easyzero is designed for ER16 through ER40 collets and is particularly effective for precision holemaking and reaming applications where tight tolerances are critical.

Runout is a common challenge in machining operations and can lead to uneven chip load, premature tool wear, poor surface finish, and difficulty holding size. Easyzero addresses this issue by allowing operators to compensate for misalignment directly at the collet nut, without changing the holder or spindle setup. According to the company, the system enables users to correct up to 0.0011 inches of runout in a matter of seconds, helping reamers and other round tools maintain tolerances as tight as 0.0011 inches.

Installation is straightforward. Operators simply replace the standard ER collet chuck nut with the Easyzero compensation nut. Six integrated adjustment screws allow precise tuning of tool concentricity, enabling the cutting edges to share the chip load evenly. This concentric cutting action results in more consistent tool wear, improved surface quality, longer tool life, and greater process reliability.

Easyzero is available in several kit configurations to suit different shop requirements. Options range from a basic kit that includes the compensation nut and hex key to a comprehensive kit with the nut, hex key, spanner, and ER collet. This flexibility allows shops to adopt the technology with minimal disruption while tailoring it to specific applications.

Monaghan Tooling Group offers five Easyzero sizes covering ER16 to ER40, making the system suitable for a wide range of reaming and round-tool operations. By reducing setup time, minimizing scrap, and lowering overall tooling costs, Easyzero provides manufacturers with a simple yet effective way to improve accuracy and productivity in everyday machining.



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