Our company is looking for a good twist drill bit with long life. We specialize in precision drilling of small stones. The stone we drill most of is rather soft and typically rates a 3 on the hardness...
We require the following size drill bits S.No Item(dia) Flute Length Total Length 1 0.62 mm 3 to 4mm 25mm 2 0.57 mm 3 to 4mm 25mm 3 0.47 mm 3 to 4mm 25mm 4 0.41 mm 3 to 4mm 25mm 5 0.39 mm 3mm 25mm 6 0...