Different sizes meets your requirement : Total 10 different sizes: 6mm, 8mm, 10mm, 14mm, 16mm, 18mm, 22mm, 35mm. 40mm, 50mm Application: Drill Glass, Tile Bottles, Blocks Jars, Fiberglass Porcelain Tile Ceramic, Slate Mable, Granite Light Stone. High strength carbon steel : This Diamond Drill Bits are made of High strength carbon steel with durable smooth processed. Good Performance and long life : Diamond dust coating offers superior performance and cutting strength. Attention: Not for use on Concrete or for depths beyond about 1/2\"; Water is required for lubrication when drilling
These Diamond Drill Bits don't look like much in the plastic package it comes in, BUT these fit my drill, and they work! Small stones for jewelry making, larger stones for garden decor. Thes... read more »
I love these Diamond Drill They come in a 10 pack I bought these for crafts for cutting bottles it add lights and other things these come in handy forsure but y... read more »
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