Material: Stainless steel
Packing list: 70pcs twist drill bits (20+50)
High-speed steel twist drill bits 20pcs set + 50pcs twist drill combination set
Package includes: 20 pieces of micro twist drill bits (size: 0.3mm, 0.35mm, 0.4mm, 0.45mm, 0.5mm, 0.55mm, 0.6mm, 0.65mm, 0.7mm, 0.75mm, 0.8mm, 0.85mm, 0.9mm, 0.95mm, 1.0mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm) and 50 pieces of titanium-plated drill bits (size: 1mm, 1.5mm, 2mm, 2.5mm, 3mm)