CHMORA 7pcs/Set 0.5-3mm Small Electric Drill Bit Collet Micro Twist Drill Chuck Set

1X 2.5mm drill collet 1X Copper Cap The collets can go with twist drill as a mini hand drll for ABS board aluminium shet paperboard drilling. 1X 3.0mm drill collet 0.5-3.0mm drill collet Excellent workmanship Go with twist drill as a mini hand drll for ABS board aluminum sheet paperboard drilling 1X 1.5mm drill collet 1X 0.5mm drill collet Drill Collet Size: 0.5mm 1.0mm 1.5mm 2.5mm 3.0mm 1X Axis 1X 1.0mm drill collet Material: copper This 0.5-3mm twist drill chuck set is made of copper with excellent workmanship.