19pcs Twist Drill Bits

specification: 1mm 1.5mm 2mm 2.5mm 3mm 3.5mm 4mm 4.5mm 5mm 5.5mm 6mm 6.5mm 7mm 7.5mm 8mm 8.5mm 9mm 9.5mm 10mm
Material: high speed steel

 

Application:

Twist drill bit can be wildely used in gold, wood, tools, lathe, milling machine etc. machine tools.