Collet Adaptor Shank Reducer Bit CNC Spindle Router 1/2" 1/4" 1/8" 3/4/6/8/10mm

● Conversion Size: 1/2" to 1/8"，1/2" to 1/4"，1/4" to 1/8"，12.7mm to 4mm ，12.7mm to 6mm，12.7mm to 8mm，12.7mm to 10mm，6.35mm to 4mm，6. High precision and good stability. Used for all kinds of engraving machine chucks.

eBay