Product information:
Name: high-speed steel twist drill 20 sets
Material: h2 high speed steel 4241
Specifications: 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
Uses: carpentry, family standing, electronic repair. Wood products, plastic products, circuit boards, etc. that can be drilled should not be used for metal drilling.