Drill Chuck, Universal Keyless Hand 1/2‑20UNF Mount 2 13mm Self Tightening Chuck Adapter Converter for Multiple Purposes

Long term stable---The chuck can hold the drill bit tightly and sturdy,not easy to loose. The drill chuck can hold the drill bit tightly and sturdy,not easy to loose. Easy to install and disassemble,more convenient and labor-saving. Long term stable---The chuck can hold the drill bit tightly and sturdy,not easy to loose. The drill chuck can hold the drill bit tightly and sturdy,not easy to loose. Easy to install and disassemble,more convenient and labor-saving. Ingenuity design--- Instantly convert impact driver to hold non-quick change drill & driver bits; Keyless chuck finger-tightens for easy bit changes; Greater clamping force, effectively preventing drill bits loose off, more Great vaule for money---Large range of clamp size which range from 2~13mm,suitable for many kinds of drill bit; Keyless and self-tighten type design is more in accordance with human engineering. Impeccable practicability---Durable and has long service life,suitable for long time work; Easy to install and disassemble,more convenient and labor-saving; Large range of clamp size which range from 2~13mm,suitable for many kinds of drill bit.