How to Stop a Drill Bit From Slipping on Tile
Get a diamond drill bit started on porcelain tile using plexiglass and a twist bit.
The hole-saw shape of diamond drill bits used with porcelain tile makes it difficult to get them started. My solution is to drill a hole in a piece of plexiglass with a twist bit the same diameter as the tile bit you’re using to drill the tile.
Mark the hole location on the tile and use two-sided tape to mount the plexiglass to the tile. Drill a hole in the plexiglass with the twist bit and then use the hole to keep the tile bit from walking when you’re getting started. Squirt a little water as you drill to cool the bit.
— Dick Snavely; Lexington, Ohio
From Fine Homebuilding #301
Originally titled “These Bits Were Made for Walking”
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