1/2-20UNF Drill Chuck Adaptor Mount 2-13mm Keyless Hand For Electric Dr.G4 P7M8

Features: The chuck can hold the drill bit tightly and sturdy not easy to loose. 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. Keyless and self-tighten type design is more in accordance with human engineering. Specification: Diameter:43mm/1.69in Length:58mm/2.28in Connection Size:1/2-20UNF Clamp Range:2 ~ 13mm / 0.04 ~ 0.51in Package List: 1 x Drill Chuck