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🔍 Porcelain Extraction Glass Drill Bits Review

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Very good

Revainrating 4.5 out of 5  
Rating 
4.3
🪚 Hole Saws & Accessories, 🔪 Cutting Tools

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Description of 🔍 Porcelain Extraction Glass Drill Bits

15 Sizes(Diameter): 6mm(1/4"), 8mm(5/16"), 10mm(3/8"), 12mm(1/2"), 14mm(9/16"), 16mm(5/8"), 18mm(11/16"), 20mm(3/4"), 22mm(7/8"), 25mm(1"), 28mm(1-3/32"), 30mm(1-3/16"), 35mm(1-2/5"), 40mm(1-1/2"), 50mm(2"). Meet your most need for sizes in this value pack. Durable & Rustless - Made of high strength and quality corundum powder of diamond sand and carbon steel with smooth nickel plated surface coating to ensure durability of usage. Practical and Useful - Easy, Quick and Smooth Dill for hole; every tip head is coated with high quality diamond sand to enhance the drilling speed to ensure a sharp, high precision and smooth cut without a broken edges in seconds. Versatile Applications: Ideal for drilling holes for Glass, Ceramics, Procelain, Tile, Granite, Mable, Bottles, Block Jars, Fiberglass, Granite Light Stone, etc.Great for HOME DIY project. Attention for USE: Please keeping adding water while drilling hole to ensure the bit keeps cool.Using speed under in 800-1000 per minute. DON'T DRILL HOLE WITHOUT WATER!

Reviews

Global ratings 3
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Type of review

Revainrating 4 out of 5

Works but requires a bit of skill

Bought to cut holes on the back of the plastic covers of a motorcycle headlight housing (you need to do this to install LED bulbs there they are fans that need to be ventilated). They worked fine for this, but you have to start at an angle or the hole saw blade will wobble (similar wood hole saws have a bit in the center for fine precision). It takes a little practice to get it right. My first pair wasn't as accurate as my later ones. The only drawback is the useless plastic storage box. A…

Pros
  • Power tool parts and accessories
Cons
  • Can't remember but there was something

Revainrating 4 out of 5

You get what you pay for

In the end they work, but they don't last long. I believe that fifteen diamond crowns of any kind can be very cheap, and they are cheap compared to many, but they are hardly okay. Compared to other bits of the same size that I have, they are flimsy and clearly not made one iota. Most importantly, they will not withstand many punctures. I used it yesterday to drill a "fairly deep" hole and I would say at least half of the diamond coating is already gone. This is compared to the other chisel…

Pros
  • Tools and Housewares
Cons
  • So far so good

Revainrating 5 out of 5

Amazing value; Cuts Porcelain, Ceramic, Glass, Clay Effortlessly

I've recently become interested in planting succulents in various pots and this drill bit set (core saws) has helped me a lot drilling drainage holes in porcelain, pots out ceramics, glass and clay. It's been about a month since I started using the Beats and they're still working. I have drilled at least 200 holes in different materials and more are coming. Here are some tips on how to get the most out of this product.1. Wear safety goggles and gloves.2. Lubricate when drilling. The holes will…

Pros
  • Hole Saws and Accessories
Cons
  • Not sure