Product Description: Product Name: Sintered Diamond Drill Bit Diameter Size: 6mm-80mm (ALL SIZE) Handle: Round handle / Triangular Handle Applicable to: Marble/granite/cobblestone/quartz stone/ceramic tile, etc. Prohibited to use: Tempered glass/metal/wood/concrete Need to add water for cooling during use Notice: The images shown above are for reference only. If the picture is inconsistent with the actual product, the actual product shall prevail. Please allow 0.1~0.3mm errors due to manual measurement.
eBay