Review on SE DH10HS Diamond Hole Saw by Charles Barney

The large drill bit is great, I drilled two holes in glazed ceramic tile to attach a shower curtain rod. The rod must penetrate the wall, not just the surface. I made a mounting template out of 1/4" plywood with a 1" hole in the center and glued it to the tile. Masking tape is not suitable for this. As other reviewers have suggested, while drilling, I used a damp sponge to drip a stream of water onto the wall above the drill bit. This worked great once the tile dust had been washed off and the denture had cooled. Using a slightly moderate speed and some relaxation, I hit in a few minutes. Mind you, it's not as quick as a pine drill or a sliding wet saw through tile, but I was really happy, somewhat surprised considering they cost surprisingly little money. The good performance and the very low cost are the reason for the five stars. However, the description of the bits is not precise. One is 25mm, the other 12mm. This is clearly stated on the products. 25mm measured and drilled is approximately 0.982 inch. Other measures around 0.482. When I opened the box I noticed the 25mm mark on the saw blade and thought maybe the 0.4 like the 25.4mm might have worn off. It wasn't like that. Thought it might be worth trying drilling holes and maybe enlarging them big enough (didn't work). Sure, I'm no pro, just a hacker who likes to get really cheap tools for his one-off projects. 1" and 1/2" bits are listed on the plastic packaging. Of course anyone can print out the label. In many cases it probably doesn't matter much, but my shower rod is 1 inch / 25.4mm so 18 thousandths / 0.4mm is bad. My apologies to these premium and "regular" tool manufacturers and resellers for not buying one from you. . I solved the problem by ordering a (cheap) 30mm lens and sending it to Revain to correct the listing. Of course I added other items to get the extra price and free shipping and I don't have the right nozzle to make the 30mm stencil. Let's go back to my hackshop. Stay five stars. Thank you Revan