49X Mini Tiny Micro HSS Twist Drill Bit Set 0.5mm-3.0mm Hand Model Craft DIY Kit
49pcs 0.2-3.4mm Hand Drill Set Mini Aluminum Hand Drill Bit Jewelry Craft Manual Drill Woodworking Tools Drill Bit Drilling Tool. Twist drill bit material: high speed steel. 48 x twist drill bits. 46pcs x twist drill.