Customer Reviews for VEVOR Core Drill Bit, 4.25" Wet/Dry Diamond Core Drill Bits for Brick and Block, Concrete Core Drill Bit with Pilot Bit Adapter and Saw Blade, 9.5" Drilling Depth, 5/8"-11 Inner Thread, Laser Welding

Perçage pour aération dans blocs et moellons. Parfait

Excelentes. Más de 50 perforaciones en hormingon armado de 210 mm de profundidad.

Bonne qualité du produit

Surprisingly easy to core 14" horizontal holes in older concrete. Makes a mess - as expected. The speed and torque seem appropriate. You still need to lean in on a 2" bit, but it probably took 15 minutes or less of not that difficult of labor. A vertical hole in a slab would have been much easier. The plastic parts of the drill appear to be good quality, except for the water adapter that needs some fiddling. The bit abrasive seems like new after at least 30" of drilling, so it looks like it will last quite a while. Overall, a good deal, especially compared to any alternatives.

Très bonne produits,fidèle a la description. Merci!

I bought this for a single use, to drill through 10" reinforced concrete. I didn't have access to water so I had to stop periodically to let the bit cool down. It took me about 20 minutes but I got thru the concrete. I'm not sure this would stand up to every day use, but for a couple of times, the price point is spot on.

Tot nu toe 3 gaten geboord. 2 door binnen/buiten muur baksteen en 1 door gestorte dekvloer. Tot nu toe prima boor. Droog geboord met geringe slijtage. .

Pas encore utilisé donc pas de commentaire possible

Makkelijk en snel een gat door baksteen.

Perfect