Specifications:
Size: 12.7mm to 10mm
Outer Diameter (OD): 12.7mm / 1/2"
Inner Diameter: 10mm / 25/64"
Total Length: 28mm / 1.10"
Material: Carbon Steel
Finish: Black Oxide
Package Content: 1pcs x Router Collet Driver Adapter

Descriptions:Made of carbon steel for high hardness and strength. Black oxide finish for corrosion and wear resistance.
Suitable for engraving machine, CNC machine and wood router chuck conversion.
Provide precision, tight and stable clamping force for work efficiency.
Easy to use. Slide the adapter into your collet and tighten.