Easy to install and disassemble, more convenient and labor-saving
Description:
100% brand new and high quality.
Eliminates need to change collets when swapping between bit sizes.
Twist-to-tighten/loosen with heavily-knurled grip means no wrench or key needed.
Heat treated & tempered highcarbon steel for durability; rust-resistant black oxide finish.
Corded Rotary Tools without changing collets.

Specifications:
Capacity: 0.3 to 3.2mm
Short Length:18mm
Diameter: 1.4cm
Color: Black

Package Included:
4x Drill Chuck

Notes:
--Due to the difference between different monitors, the picture may not reflect the actual color of the product.
--Please allow 1-3mm error due to manual measurement.
--Thanks for your understanding.