Features：
– 100% brand new and high quality
– Also can grind marble, jade and other non-metallic materials
– Petiolate can basically replace the small wheel, there is no dust pollution
– Grinding efficiency is increased to 10 times better than manual files and petiolate wheels
– Processing is high quality and smoothness and can be all sorts of high-precision shape
– Safe, reliable and convenient to use
– Long life: over 200 times than the wheel
– HRA processing hardness: 80
– Burs diameter: 2.35mm
Package list：
10 different types each pack
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