JBO Thread Plug Gauge - Metric Fine Go/No-Go - Right Hand - 6H - M21 x 1.5 4 Month Widin compatible with standard CNC collets

compatible with standard CNC collets and holders

Pitch: Fine-pitch for narrow kerf and smooth finishes

The M2 HSS material provides a robust balance of hardness and toughness for reliable tool life in typical workshop materials

With the ability to tailor cutting length and taper angle for every diameter

this reduction sleeve provides reliable performance across a range of VDI holders

JBO Thread Plug Gauge - Metric Fine Go/No-Go - Right Hand - 6H - M21 x 1.5 4 Month Widin compatible with standard CNC colletsThe JBO Thread Plug Gauge is a precision inspection tool designed for metric fine threads. Its ideal for machinists, quality inspectors, and assembly teams that require consistent hole sizes and accurate thread engagement. Built to streamline go no go checks, it helps you confirm fit quickly without guesswork. With a Go No Go design, you can perform fast pass fail assessments of threaded holes, speeding up setup and reducing inspection time. The