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The Dremel Glass Drilling Bit 662 is ideal for cutting holes in glass. With the included cooling fluid you can drill perfect 3.2mm diameter holes. Shank diameter : 3,2 mm Working diameter : 3,2 mm
The Dremel Glass Drilling Bit 663 is ideal for cutting holes in glass. With the included cooling fluid you can drill perfect 6.4mm diameter holes. Shank diameter : 3,2 mm Working diameter : 6,4 mm