M35 Cobalt Round Straight Handle Metric Drill bit Set 1mm-10mm Drill Bits Suitable for Stainless Steel, Hard Metal, Cast Iron, Copper, Aluminum Plastic(1mm-10mm/19pcs)

【Cobalt drill bits Widely applicable】Cobalt drill bits for by are suitable for stainless steel, carbon, steel, cast iron, engineering steel, hard metals, copper, aluminum soft metals wood suitable for home handicraft scenes and professional work

• 【Rare element cobalt】Metal drill bits with 5% cobalt element improve hardness, high temperature resistance, durability and performance better than conventional drill bits Note that it does not apply with glass and ceramics
• 【Good Performance】135% Spiral Double Edge Cutting Sharp Corners Do Not Linger on the Surface, but Advance in a Predetermined Direction
• 【Metric drill bits set】1.0mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 6.5mm7mm, 7.5mm, 8mm, 8.5mm, 9mm, 9.5mm, 10mm drill bits A total of 19 round straight steel drill bits with different diameters Small sizes require attention to speed and temperature
• 【Sturdy Metal Storage Box】A storage box with size identification, made of metal that is sturdy and easy to carry, select and store