7X 0.5-3mm Drill Tool Chuck Set Small Electric Drill Bit Collet Tool~
Drill Collet Size: 0.5mm, 1.0mm, 1.5mm, 2.5mm, 3.0mm. 7p cs Drill Bit Chuck+ Collets Set is suitable for punching hole on ABS plate, soft wood, cardboard. Used with hand drill or electric drill(Not included).