Outer Diameter (OD): 12.7mm / 1/2"
Inner Diameter: 7.94mm / 5/16"
Total Length: 28mm / 1.10"
Material: Carbon Steel
Finish: Rust-proof
Package Content: 4pcs x Router Collet Driver Adapter

CNC engraving bit router adapter made of selected carbon steel material, heat treated and precision ground, it has high hardness, good toughness, strong wear resistance and impact resistance, and is suitable for long-term use.
Suitable for engraving machine, CNC machine and wood router chuck conversion.
The multi-specification conversion chucks are manufactured using precision machine tools, have high-precision clamping force and good grip stability, are easy to operate, and have no vibration when used.
The router adapter is very easy to use, just insert it into the collet and tighten it to secure it, no tools are required.
There are many sizes available to meet your needs. Please confirm the correct size before ordering to avoid installation problems. Always keep the chuck firmly fixed on the spindle chuck or collet during use to avoid slipping during processing.