Mini Portable 0.3-6.5mm Electric Grinder Quick Change Drill Chuck with 6.35mm 1/4" Hex Shank Universal Drill Bit Converter Screwdriver Impact Driver Adaptor
Essential tools for you. If you want to transform your screw driver into a full-fledged drill, this  Quick Change Drill Chuck is exactly what you are looking for. 

Features:
Mini electric grinding drill chuck.
Allow hex drive power tools to use general drill bits.
Hold the drill bits and accessories up to 1/4" in Diameter.
Easily lock onto and release drill bits.
Convert any cordless screwdriver into a drill or grinder.
Transform the chuck way between different electric tools.

Specifications:
Color: Silver + Black
Material: Aluminium Alloy
Hex Shank Diameter: 6.35mm / 1/4"
Clamping Range: 0.3-6.5mm / 0.012-0.256" 
Overall Length: 7-9cm / 2.76-3.54"
Length of Shank: 58mm / 2.28"
Diameter of Head: 22mm / 0.866"
Item Size: 9 * 2.2cm / 3.54 * 0.866" (L * D)
Item Weight: Approx. 41g / 1.45oz
Package Weight: Approx. 43g / 1.52oz
Package Size: Approx. 9 * 3 * 3cm / 3.54 * 1.18 * 1.18in

Package List:
1 * Quick Change Drill Chuck