Features:

  • ✔ SIZE & REMINDING -- Masonry drill bits set includes 2* 6mm (1/4"), 1* 8mm (5/16"), 1* 10mm (3/8"), 1* 12mm (1/2"). Please cooling with water and control the speed when drilling, then dry the water or apply the oil to prevent rusting after used.
  • ✔ UPGRADED TIP -- This Eaninno concrete drill bit set made of hard and durable Cemented Carbide (German Material, assembled in China) with the Thickened Tip, the hardness is higher than the ordinary drill bit.
  • ✔ FEATURE -- Solid twist drill bits openings are smooth, will not cause tremors. U groove drill bit design, surface rust treatment with copper plating, drilling and chip removal more smoothly.
  • ✔ MULTIPURPOSE -- Installer drill bits set for use with electric or cordless hammer drills, Ideal for drilling holes in concrete, ceramic tile, brick, wood, plastic, soft metal, stone, and masonry.
  • ✔ ABOUT -- “Eaninno US” is the ONLY LEGAL SELLER for all "Eaninno" products. Any other seller CAN NOT provide the same quality products and warranted service. Please be careful not to buy counterfeit products.
Use these over Bosch bits for terra cotta and stucco.

Update 1/2019: While we've not used the larger bits, just the 6 mm ones for the Wife's pot people, they are holding up well after 100's of terra cotta holes. The sellers are going to make more clear the fact that while they're assembled in China, the bits (arrowhead tip) are made in Germany. Went from 3 stars to 5 stars, they do what they're sold to do. We're happy with them. End of update. The Bosch glass & tile, and Bosch brick & block bits are junk. They would last about 20 seconds into the sides of terra cotta pots. Tried the 5 piece set with EANINNO label on one side and Made In China one the back of the box. They have a sharp arrowhead tip inserted into the split shaft. I wouldn't use 'em in hammer drill mode, but they went through terra cotta and stucco like hard butter. No wandering, very easy starting, worked well w/o water too - not even warm. Now, I'm ordering some 1/8 " single cheapy bits with the arrowhead design from the Zon. FYI, y'all.

Worth more than their asking

Really well built. These are actually sharp along ALL the edges and the tips. I assumed it would wear off after the first use, but i've drilled 6 holes with the 6mm and it hasn't changed. (ceramic pots, porcelain tiles, and brick) They're sharp enough, that it didn't skip on porcelain tile. Some of the copper plating wore off, but the edges of the holes haven't chipped, so I'm impressed.

Drill bits are good quality, best ive used yet.

Review edited: i was contacted by the seller an they made it right for defective piece i received, great customer service. Will buy from again. Also the drill bit i used worked awesome.

Great Product!

This is an excellent product. I have drilled several pots for my cactus and succulents and they r so good. Still sharp and work is done in a jiffy.

Wish I'd gotten these sooner

Last time I tried drilling a drainage hole in a flower pot for my wife using a standard masonry bit, it took 15 minutes of pressure and the tip started glowing red. Today I drilled a dozen 1/2" holes in some pretty thick ceramic pots using these sharp concrete bits. Each hole took 10 to 30 seconds of drilling time and much less pressure. I also like the triangle-cross-section shaft which keeps the bit from slipping in my hand drill.

Work better then I thought they would

These drills bits are great, just keep them wet and cool will going through the harder stuff such as tiles or countertops, you will have no problems.

Quality

I like how it looks although I have only used 1 bit so far. Sharp and it bites.

Great Bits. Drill Through Concrete WITHOUT A Hammer Drill

These bits worked great for my project. I needed to drill through stucco and concrete but I do not have a hammer drill. Using these bits, my regular cordless drill was able to drill holes in the cinder block wall almost like butter !! Prior to purchasing these bits, I spent half an hour trying to use my regular Dewalt bits to drill a hole and I made no progress. With these bits it took me 10 seconds.

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