Customer Reviews

Bosch GT300 1/4-Inch Carded Glass and Tile Bit

5 star:		(3)
4 star:		(0)
3 star:		(0)
2 star:		(0)
1 star:		(0)

 

 

I researched all sorts of drill bits and techniques to install two Ginger towel bars through 3/8" thick marble wall tiles in our new bathroom. Marble is not as hard as granite, but can be split/cracked if the wrong drill bit is used. The tile store insisted I use a diamond core bit that proved too difficult for the novice (me) to use properly. I only had 8 holes to drill and wasn't going to risk learning on the job how to use the diamond core drill bit. This Bosch GT300 drill bit (and the smaller 3/16" GT200) went through the tiles very easily. I just took my time, used a slow drill speed with moderate pressure, and kept the bit cool with an occasional dunk in water. The tip of the bit started the holes right where I marked them on the walls rather than walk around the face of the tile as the diamond core and masonary bits tend to do. If you have one, you can use a Dremel tool with their Tile Cutting Bit # 562 to start the hole as well - just enough to prevent the larger 1/4" bit from walking the face of the tile.

I've always liked Bosch power tools, and their accessories like these Glass & Tile Bits are super.

This was least expensive of the quality bits available. It worked perfectly for the task I bought it for, showing absolutely no visible wear after using it several times. I was originally afraid it would become dulled after considerable use, but it did not. I'm well satisfied with the brand and its performance.

I bought this as an extra 1/4" bit as it is the size I use most. Works well.