1 100% brand new and high quality 2 This 0.5-3mm twist drill chuck set is made of brass with excellent workmanship. 3 The collets can go with twist drill as a mini hand drill for ABS board, aluminum sheet, paperboard drilling. 4 Drill Collet Size is 0.5mm, 1.0mm, 1.5mm, 2.5mm, 3.0mm, to meet different needs 5 Practical tool accessories, and it is easy to install

What's in the box
1 x Electric Drill Bit Collet