Toolstop Podcast #77 - Buying Guide for Tile Drill Bits

On this week's podcast we combine our usual banal chat with news that we're visiting Bosch and DeWalt next week, so get your questions in for us to ask them on our Facebook Page, plus we were joined by Malcolm Kilpatrick from Bosch, and asked him to explain how users should decide which drill bit to buy that will most effectively drill into tiles.

Download.

This is becoming a more common problem, that of tradespeople having to drill holes into porcelain tiles. Porcelain tiles are traditionally very hard to drill into, not just because of their surface, but also because of the risk of breakages.

The popularity of these tiles, not just on kitchen and bathroom walls, but nowadays more often on floors, meaning that tradespeople are faced with tricky cuts and drills into a hard, often slippery, surface.

Bosch offer 3 solutions:

1. The cheapest is the Bosch multi-construction drill bit with a tungsten carbide head which forms a multi-purpose tip. The shaft is cylindrical with multiple diamond ground edges forming a steep spiral. These drill bits aren't specifically designed for porcelain, but are perfect for someone wishing to drill just a few holes to, for example, fit some bathroom fixtures.

2.Bosch diamond drill bit. This is a bit more involved as it needs to be water cooled as you drill, implying that you use a cordless drill! A cutter like this will allow you to drill 2o-30 holes.

3. Lastly we have Bosch's easyDry diamond drill bit. It'sthe most specialised offering from Bosch. Hard wearing, the oil filled drill bits will provide you with a high number of holes drill and is a lot less messier than the water cooled option above. The oil reservoir within the bit can be refilled, thereby extending it's life on the jobsite. See it in action in this video.

The oil is released as the bit rotates in the drill. It doesn't spray all over your work piece, but it provides just the right amount of lubrication to drive the bit through the hard surface of the tile.

All of these drill bits can be used in any standard, 1/2" chuck drill. As noted above, only use a cordless drill with water cooled drill bit.

And don't use the hammer function on your drill; you'll be more likely to break the tile.

Comments

plumbing on Sun, 15 Apr 2012 03:05:20 +0100 (Likes: 1 / Dislikes: 0

Tile is both extremely hard and very fragile and can be difficult to work with. Special tools are often required. A tile drill bit spins very rapidly and gradually abrades a path through the tile, rather than cutting a path through it, as would a drill bit punching a hole through wood. 


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