DescriptionThis item is a professional drill bit set with special storage case. There are 20pcs of bills in the case and each of them is of different size from 0.3mm to 1.6mm, with interval 0.05mm. Industrial grade high-speed steel for better durability and sturdiness.Feature- Color: Yellow - Material: Stainless steel - Bit diameter: 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 - High-speed steel with coating treatment, tougher and more abrasion resistant. - drill bits, accurate and fine, increase drilling speed. - Mainly for drilling wood, plastic, fiberglass, printed circuit board, and metal including copper, aluminum, tool steel, cast iron, and heavy-duty abrasive alloy metal, etc. - for home DIY, building and engineering use etc.
