6mm-3.175mm Accurate Engraving Bit Reducing Collet CNC Router Tool Adapter Convert for Engraving Machine Collets

• Engraving Bit CNC Router Tool Adapter after heat treatment and accurate grinding,fine grinding,concerted and high accurate size; suitable for engraving machine ER collet.
• Clamping force, high accuracy, good gripping stability.
• Quality steel production,heat treatment, has good flexibility and abrasion resistance.
• Commonly used in the engraving machine spindle motor folder knife, with the engraving machine collets use.
• Engraving adapter is processed with accurate grinding, with great clamping force, high accuracy, and good gripping stability.

Specification: Material: Steel Size OD to ID(mm): 6‑3.175 Package include: 1 x Engraving Bit CNC Router Tool Adapter