Porsadrill supplies tile hole saws and bits in a variety of sizes - a very large variety. According to their website they have over 35 sizes to choose from, ranging from 6mm (1/4") to 125 mm (5"). There are a variety of sample packs as well as single bit sizes, each coming with a non-slip drill guide plate.

Why a guide plate? For the FULL article from Pro Tool Reviews Click Here

Because as we mentioned earlier, these hole saw bits don't come with a central pilot bit to guide the way. Instead, you begin cutting immediately, in the exact location you choose. Porsadrill provides standard hole saws that fit into a cordless drill, or you can get larger sizes (70mm, 2-3/4" or greater) equipped for use in a drill press for cleaner, more precise, cuts. They also carry a line of hobby craft bits that are smaller in size (3-5mm) and more suited for drilling pebbles, pendants, rocks or glass beads.

These are designed for use with either bench drills or a Dremel tool. With respect to their Bathroom Fitters Kit Max (BFKMX), Porsadrill puts the individual costs of each of the components, if bought separately, at $182 dollars. We thought that sounded about right, but wanted to do the math on our own using a known supplier. Here are our numbers: * 1/4" - $17.50 x 2 = $35 * 5/16" - $20 x 2 = $40 * 5/8" = $29 * 1-1/4" = $42 * 1-5/8" = $47 Grand total = $193 (not including the guide plate)

What we came up with was close enough to see that Porsadrill isn't messing around when it says that their Bathroom Fitters Kit Max (BFKMX) delivers a bargain value. Now that we knew we could trust Porsadrill on their numbers, how about their claims?

The concept for the Bathroom Fitters Kit is that you can use the various sizes to complete 98% of all bathroom drilling needs. When you break it down it makes sense. The 1-5/8" saw is perfect for 1-1/2" sink drain pipes. The 1-1/4" is what I'd use for all shower head and larger faucet supplies. The 5/8" hole saw is ideal for making perfect 1/2" supply line holes.

Possibly the most useful, however, are the oft overlooked 6mm and 8mm (1/4" and 5/16") hole saws that are absolutely perfect for setting plastic or metal anchors in drywall or any other building material that exists behind the tile. These little diamond bits are the perfect way to hang a mirror, toilet paper dispenser, or even a shower door on top of tiled surfaces - and you don't have to go searching for a grout line, you can put it exactly where you want it.