0.8 - 3mm Diamond Coated HSS Twist Drill Bits For Glass Jewellery Porcelain Jade

0.8 - 3mm Diamond Coated Twist Drill Bit Straight Shank For Glass Jewellery Jade. -Suitable for jewellery， gemstone， jade and pearl etc. -High quality straight shank diamond coated twist drill bit. -Available size:0.8mm, 1mm, 1.2mm, 1.5mm, 1.8mm, 2mm, 2.2mm, 2.5mm, 3mm.

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