Product Name: Diamond tip masonry bit, Stone cutting bits, Granite hole bit, Drill bits for rocks Outer Diameter : 20mm(3/4 inch); Inner Diameter: 17mm; Drill Depth: 29mm Please add water for coolant ...
"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." If you want to create perfectly round holes in wood, metal, or plastic, you’re going to need a hole saw.
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