high speed twist drill bit 19pcs online manufacture

TWKit-4 19pcs 1-10mm Barrelled Cobalt High-speed Steel Twist Drill Bit 19pcs in one set, diameters are: 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, 9mm, ... Read More

TWKit-8 19pcs 1-10mm Cobalt Metal Package High-speed Steel Twist Drill Bit 19pcs in one set, diameters are: 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, ... Read More

19pcs 1-10mm Cobalt High-speed Steel Twist Drill Bit for Stainless Steel 19pcs in one set, diameters are 1 - 1.5 - 2 - 2.5 - 3 - 3.5 - 4 - 4.5 - 5 - 5.5 - 6 - 6.5 - 7 - 7.5 - 8 - 8.5 - 9 - 9.5 - 10mm Surface ... Read More