Micro Round Shank Drill Bits Set Small Precision HSS Twist Drill Bit Kit 50PCS

50 PCS Twist Drill Bits. To avoid drill bit break, 1mm and 1.5mm bits should be used with pin vise. 2mm, 2.5mm, 3mm bits can be used with power drill, with low speed and low drilling pressure. Mini twist drill bit can NOT be used in the impact drill.

eBay