Drill Doctor 750X Drill Bit Sharpener for High-Speed Steel, Masonry, Carbide, Cobalt, TiN-coated Drill Bits, with Adjustable Angles from 115° to 140°, Sharpens 3/32in - 3/4in Drill Bits
Steel Dragon Tools 3-Piece 1.5-inch to 2.5-inch Dry Diamond Core Drill Bit Kit with Hex SDS Adapters and Case
DEWALT DW5207 7-Piece Premium Percussion Masonry Drill Bit Set
Bosch 9-Piece Impact Tough Titanium Drill Bit Set, TI9IM
Bosch IMC500 5-Piece Impact MultiConstruction Drill Bit Set
Hiltex 115pc Titanium Drill Bit Set Steel & Wood Carpenter Masonry Hobby w/ Index Case
Read more about it here: https://ibuildit.ca/tips/drilling-hardened-steel/ The tile cutting blade I used is not ideal for this, since the diamond particles are too large to give a clean cutting edge, but it was good enough for this quick test.
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