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Description Suitable for drilling in tough material, including aluminium, cast iron, brass, copper, magnesium alloy, plastics, etc. It includes drill bits with diameters of 3mm, 4mm, 5mm. Industrial grade high-speed steel for better durability and sturdiness. 6mm, 8mm, 10mm , each size comes with 1 piece.
This is a professional drill bit set.
Features
- Color: Silver.
- Material: High steel.
- Size: 7 x 1 x 1 cm.
- for home DIY, building and engineering use etc.
- Bit diameter: 3mm, 4mm, 5mm. 6mm, 8mm, 10mm.
- 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.
- High-speed steel with coating treatment, tougher and more abrasion resistant for longer working life and high work efficiency.
- design drill bits, accurate and fine, increase drilling speed.
Printed circuit board drill bits